diff --git a/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
index 4206bc780f7..39d85225c3e 100644
--- a/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
@@ -14670,6 +14670,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/ir/kt29833.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
index 769fdd2804b..4a3a74c9edb 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
@@ -5,14 +5,11 @@
 
 package org.jetbrains.kotlin.backend.common.overrides
 
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrFunction
-import org.jetbrains.kotlin.ir.declarations.IrProperty
-import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
+import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.util.*
 
 class FakeOverrideCopier(
-    symbolRemapper: SymbolRemapper,
+    private val symbolRemapper: SymbolRemapper,
     private val typeRemapper: TypeRemapper,
     private val symbolRenamer: SymbolRenamer
 ) : DeepCopyIrTreeWithSymbols(symbolRemapper, typeRemapper, symbolRenamer) {
@@ -87,4 +84,20 @@ class FakeOverrideCopier(
             this.getter = declaration.getter?.transform()
             this.setter = declaration.setter?.transform()
         }
+
+    override fun visitValueParameter(declaration: IrValueParameter): IrValueParameter =
+        declaration.factory.createValueParameter(
+            declaration.startOffset, declaration.endOffset,
+            mapDeclarationOrigin(declaration.origin),
+            symbolRemapper.getDeclaredValueParameter(declaration.symbol),
+            symbolRenamer.getValueParameterName(declaration.symbol),
+            declaration.index,
+            declaration.type.remapType(),
+            declaration.varargElementType?.remapType(),
+            declaration.isCrossinline,
+            declaration.isNoinline
+        ).apply {
+            transformAnnotations(declaration)
+            // Don't set the default value for fake overrides.
+        }
 }
diff --git a/compiler/testData/codegen/box/ir/kt40083.kt b/compiler/testData/codegen/box/ir/kt40083.kt
new file mode 100644
index 00000000000..c0df35b4ac3
--- /dev/null
+++ b/compiler/testData/codegen/box/ir/kt40083.kt
@@ -0,0 +1,21 @@
+// MODULE: lib
+// FILE: lib.kt
+
+// KT-40083
+
+open class X {
+    open fun red(x: Int, y: (() -> Int) = { 31 }): Int {
+        return x+y()
+    }
+}
+
+class Y: X()
+
+// MODULE: main(lib)
+// FILE: main.kt
+fun box(): String {
+    if (Y().red(17) { 23 } != 40) return "FAIL 1"
+    if (Y().red(29) != 60) return "FAIL 2"
+    return "OK"
+}
+
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index e8b605c6525..43b704208e1 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -15895,6 +15895,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/ir/kt29833.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index bbefe37a56b..adbfb1c1d5b 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -15895,6 +15895,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/ir/kt29833.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index ec7bb2bbcb0..53d01b62b64 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -14670,6 +14670,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/ir/kt29833.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
index 72712da8a61..8bec27c0f6e 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
@@ -12770,6 +12770,11 @@ public class IrJsCodegenBoxES6TestGenerated extends AbstractIrJsCodegenBoxES6Tes
             runTest("compiler/testData/codegen/box/ir/kt25405.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
index 9e099e65b64..b218a530ee3 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
@@ -12770,6 +12770,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/ir/kt25405.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index e47cd58d521..311a975cd91 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -12835,6 +12835,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/ir/kt25405.kt");
         }
 
+        @TestMetadata("kt40083.kt")
+        public void testKt40083() throws Exception {
+            runTest("compiler/testData/codegen/box/ir/kt40083.kt");
+        }
+
         @TestMetadata("objectClass.kt")
         public void testObjectClass() throws Exception {
             runTest("compiler/testData/codegen/box/ir/objectClass.kt");