diff --git a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt
index 05a23a99259..61fde4de7e3 100644
--- a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt
+++ b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt
@@ -380,7 +380,7 @@ class DefaultParameterCleaner(
     }
 
     override fun transformFlat(declaration: IrDeclaration): List<IrDeclaration>? {
-        if (declaration is IrValueParameter && !context.scriptMode && declaration.defaultValue != null) {
+        if (declaration is IrValueParameter && declaration.defaultValue != null) {
             if (replaceDefaultValuesWithStubs) {
                 if (context.mapping.defaultArgumentsOriginalFunction[declaration.parent as IrFunction] == null) {
                     declaration.defaultValue =