diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/InlineConstructorsTransformation.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/InlineConstructorsTransformation.kt
index 6a87e3147ea..bd45b542ccd 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/InlineConstructorsTransformation.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/InlineConstructorsTransformation.kt
@@ -69,7 +69,7 @@ internal class InlineConstructorsTransformation(val context: Context): IrElement
         val statements = (functionDeclaration.body as IrBlockBody).statements
         replaceDelegatingConstructorCall(statements, functionDescriptor)
         functionDeclaration.transformChildrenVoid(ValueSubstitutor())
-        context.ir.originalModuleIndex.functions[functionDescriptor] = functionDeclaration
+        context.ir.originalModuleIndex.functions[functionDescriptor.original] = functionDeclaration
 
         return irCall
     }