diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/ir/Fir2IrTextTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/ir/Fir2IrTextTestGenerated.java
index 47dbfbc36d9..f2dd63ca4c1 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/ir/Fir2IrTextTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/ir/Fir2IrTextTestGenerated.java
@@ -238,6 +238,12 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
             runTest("compiler/testData/ir/irText/classes/kt43217.kt");
         }
 
+        @Test
+        @TestMetadata("kt44013.kt")
+        public void testKt44013() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/kt44013.kt");
+        }
+
         @Test
         @TestMetadata("kt45853.kt")
         public void testKt45853() throws Exception {
diff --git a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt
index 2428ac4c49f..023a4493d02 100644
--- a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt
+++ b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt
@@ -239,7 +239,8 @@ class BodyGenerator(
                 (ktClassOrObject as? KtClassOrObject)?.getSuperTypeList()?.let { ktSuperTypeList ->
                     for (ktSuperTypeListEntry in ktSuperTypeList.entries) {
                         if (ktSuperTypeListEntry is KtSuperTypeCallEntry) {
-                            val superConstructorCall = statementGenerator.pregenerateCall(getResolvedCall(ktSuperTypeListEntry)!!)
+                            val resolvedCall = getResolvedCall(ktSuperTypeListEntry) ?: continue
+                            val superConstructorCall = statementGenerator.pregenerateCall(resolvedCall)
                             val irSuperConstructorCall = CallGenerator(statementGenerator).generateDelegatingConstructorCall(
                                 ktSuperTypeListEntry.startOffsetSkippingComments, ktSuperTypeListEntry.endOffset, superConstructorCall
                             )
diff --git a/compiler/testData/ir/irText/classes/kt44013.fir.txt b/compiler/testData/ir/irText/classes/kt44013.fir.txt
new file mode 100644
index 00000000000..996ce4a44e4
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt44013.fir.txt
@@ -0,0 +1,69 @@
+FILE fqName:<root> fileName:/kt44013.kt
+  CLASS CLASS name:Test1 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Test1
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Test1 [primary]
+      BLOCK_BODY
+        ERROR_CALL 'Cannot find delegated constructor call' type=kotlin.Function0<kotlin.Int>
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Test1 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>]'
+    FUN FAKE_OVERRIDE name:invoke visibility:public modality:ABSTRACT <> ($this:kotlin.Function0<R of kotlin.Function0>) returnType:kotlin.Int [fake_override,operator]
+      overridden:
+        public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Function0<R of kotlin.Function0>
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:Base modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Base
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Base [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Base modality:ABSTRACT visibility:public superTypes:[kotlin.Any]'
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:Test2 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>; <root>.Base]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Test2
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Test2 [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Base'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Test2 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>; <root>.Base]'
+    FUN FAKE_OVERRIDE name:invoke visibility:public modality:ABSTRACT <> ($this:kotlin.Function0<R of kotlin.Function0>) returnType:kotlin.Int [fake_override,operator]
+      overridden:
+        public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Function0<R of kotlin.Function0>
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Function0
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Function0
+        public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Function0
+        public open fun toString (): kotlin.String [fake_override] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/testData/ir/irText/classes/kt44013.kt b/compiler/testData/ir/irText/classes/kt44013.kt
new file mode 100644
index 00000000000..96e7ea9927b
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt44013.kt
@@ -0,0 +1,9 @@
+// SKIP_KT_DUMP
+// IGNORE_FIR_DIAGNOSTICS
+
+// See KT-44013: FE accepts incorrect code in 1.5
+
+abstract class Test1 : () -> Int()
+
+abstract class Base
+abstract class Test2 : () -> Int(), Base()
diff --git a/compiler/testData/ir/irText/classes/kt44013.txt b/compiler/testData/ir/irText/classes/kt44013.txt
new file mode 100644
index 00000000000..d4dac6f3476
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/kt44013.txt
@@ -0,0 +1,69 @@
+FILE fqName:<root> fileName:/kt44013.kt
+  CLASS CLASS name:Test1 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Test1
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Test1 [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Test1 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>]'
+    FUN FAKE_OVERRIDE name:invoke visibility:public modality:ABSTRACT <> ($this:kotlin.Function0<kotlin.Int>) returnType:kotlin.Int [fake_override,operator]
+      overridden:
+        public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Function0<kotlin.Int>
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:Base modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Base
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Base [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Base modality:ABSTRACT visibility:public superTypes:[kotlin.Any]'
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:Test2 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>; <root>.Base]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Test2
+    CONSTRUCTOR visibility:public <> () returnType:<root>.Test2 [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Base'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Test2 modality:ABSTRACT visibility:public superTypes:[kotlin.Function0<kotlin.Int>; <root>.Base]'
+    FUN FAKE_OVERRIDE name:invoke visibility:public modality:ABSTRACT <> ($this:kotlin.Function0<kotlin.Int>) returnType:kotlin.Int [fake_override,operator]
+      overridden:
+        public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Function0<kotlin.Int>
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Function0
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Function0
+        public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Function0
+        public open fun toString (): kotlin.String [fake_override] declared in <root>.Base
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/ir/IrTextTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/ir/IrTextTestGenerated.java
index 6ee465b08f1..d5f989b84c8 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/ir/IrTextTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/ir/IrTextTestGenerated.java
@@ -238,6 +238,12 @@ public class IrTextTestGenerated extends AbstractIrTextTest {
             runTest("compiler/testData/ir/irText/classes/kt43217.kt");
         }
 
+        @Test
+        @TestMetadata("kt44013.kt")
+        public void testKt44013() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/kt44013.kt");
+        }
+
         @Test
         @TestMetadata("kt45853.kt")
         public void testKt45853() throws Exception {