diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InterfaceDelegationLowering.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InterfaceDelegationLowering.kt
index 2faff6a2e17..fd4fcc76742 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InterfaceDelegationLowering.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InterfaceDelegationLowering.kt
@@ -74,7 +74,7 @@ class InterfaceDelegationLowering(val state: GenerationState) : IrElementTransfo
 
         val interfaceDescriptor = interfaceFun.containingDeclaration as ClassDescriptor
         val defaultImpls = InterfaceLowering.createDefaultImplsClassDescriptor(interfaceDescriptor)
-        val defaultImplFun = InterfaceLowering.createDefaultImplFunDescriptor(defaultImpls, interfaceFun, interfaceDescriptor, state.typeMapper)
+        val defaultImplFun = InterfaceLowering.createDefaultImplFunDescriptor(defaultImpls, interfaceFun.original, interfaceDescriptor, state.typeMapper)
         val returnType = inheritedFun.returnType!!
         val irCallImpl = IrCallImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, returnType, defaultImplFun, null, JvmLoweredStatementOrigin.DEFAULT_IMPLS_DELEGATION)
         irBody.statements.add(IrReturnImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, returnType, inheritedFun, irCallImpl))