diff --git a/idea/src/org/jetbrains/kotlin/idea/codeInliner/ReplacementPerformer.kt b/idea/src/org/jetbrains/kotlin/idea/codeInliner/ReplacementPerformer.kt
index b3b07cfefa2..d09921a87d4 100644
--- a/idea/src/org/jetbrains/kotlin/idea/codeInliner/ReplacementPerformer.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/codeInliner/ReplacementPerformer.kt
@@ -115,8 +115,7 @@ internal class ExpressionReplacementPerformer(
             insertedStatements.add(inserted)
         }
 
-        val mainExpression = codeToInline.mainExpression
-        val replaced: KtExpression? = when (mainExpression) {
+        val replaced: KtExpression? = when (val mainExpression = codeToInline.mainExpression) {
             is KtStringTemplateExpression -> elementToBeReplaced.replacedWithStringTemplate(mainExpression)
 
             is KtExpression -> elementToBeReplaced.replaced(mainExpression)