diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/inline/KotlinInlineFunctionDialog.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/inline/KotlinInlineFunctionDialog.kt
index 89c0961c1f9..9d8f5a30ef0 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/inline/KotlinInlineFunctionDialog.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/inline/KotlinInlineFunctionDialog.kt
@@ -65,7 +65,7 @@ class KotlinInlineFunctionDialog(
             if (function.isWritable) "Inline all and remove the function"
             else "All invocations in project"
 
-    override fun getKeepTheDeclarationText(): String =
+    override fun getKeepTheDeclarationText(): String? =
             if (function.isWritable) "Inline all and keep the function"
             else super.getKeepTheDeclarationText()