diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/lower/LocalDeclarationsLowering.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/lower/LocalDeclarationsLowering.kt
index b7401620016..5124ed56db2 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/lower/LocalDeclarationsLowering.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/lower/LocalDeclarationsLowering.kt
@@ -526,6 +526,7 @@ class LocalDeclarationsLowering(val context: BackendContext) : DeclarationContai
                     Visibilities.PRIVATE,
                     newTypeParameters
             )
+            newDescriptor.returnType = oldDescriptor.returnType
 
             oldDescriptor.dispatchReceiverParameter?.let {
                 recordRemappedParameter(it, newDescriptor.dispatchReceiverParameter!!)