diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
index 450048ebc7d..5a0edd0160e 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
@@ -7142,6 +7142,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
         public void testInlineFunctionCompanionPropertyAccess() throws Exception {
             runTest("compiler/testData/codegen/box/companion/inlineFunctionCompanionPropertyAccess.kt");
         }
+
+        @Test
+        @TestMetadata("kt54645.kt")
+        public void testKt54645() throws Exception {
+            runTest("compiler/testData/codegen/box/companion/kt54645.kt");
+        }
     }
 
     @Nested
diff --git a/compiler/testData/codegen/box/companion/kt54645.kt b/compiler/testData/codegen/box/companion/kt54645.kt
new file mode 100644
index 00000000000..1bcec7f80c7
--- /dev/null
+++ b/compiler/testData/codegen/box/companion/kt54645.kt
@@ -0,0 +1,22 @@
+// TARGET_BACKEND: JVM_IR
+// IGNORE_BACKEND_FIR: JVM_IR
+// ISSUE: KT-54645
+
+abstract class Base {
+    open class Nested
+}
+
+sealed class Derived : Base() {
+    open class Nested
+}
+
+class Impl() : Derived() {
+    companion object : Nested()
+}
+
+fun takeDerivedNested(x: Derived.Nested) {}
+
+fun box(): String {
+    takeDerivedNested(Impl)
+    return "OK"
+}
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
index 401d8ea98db..1f74efc7ede 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
@@ -7142,6 +7142,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
         public void testInlineFunctionCompanionPropertyAccess() throws Exception {
             runTest("compiler/testData/codegen/box/companion/inlineFunctionCompanionPropertyAccess.kt");
         }
+
+        @Test
+        @TestMetadata("kt54645.kt")
+        public void testKt54645() throws Exception {
+            runTest("compiler/testData/codegen/box/companion/kt54645.kt");
+        }
     }
 
     @Nested