diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/WhenTranslator.kt b/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/WhenTranslator.kt
index 34e70d69a99..6e193e12348 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/WhenTranslator.kt
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/WhenTranslator.kt
@@ -163,7 +163,7 @@ private constructor(private val whenExpression: KtWhenExpression, context: Trans
                 lastEntry.statements += JsBreak().apply { source = entry }
                 members
             }
-            Pair(JsSwitch(subjectSupplier(), switchEntries).apply { source = expression }, nextIndex)
+            Pair(JsSwitch(subjectSupplier(), switchEntries).apply { source = whenExpression }, nextIndex)
         }
         else {
             null
diff --git a/js/js.translator/testData/lineNumbers/whenEntryWithMultipleConditions.kt b/js/js.translator/testData/lineNumbers/whenEntryWithMultipleConditions.kt
index 43a4560d54e..e8ff31e3d36 100644
--- a/js/js.translator/testData/lineNumbers/whenEntryWithMultipleConditions.kt
+++ b/js/js.translator/testData/lineNumbers/whenEntryWithMultipleConditions.kt
@@ -18,4 +18,4 @@ fun box(x: Int) {
     )
 }
 
-// LINES: 19 4 4 3 4 6 9 9 6 11 13 13 11 16 16 3 2
\ No newline at end of file
+// LINES: 19 4 4 3 3 4 6 9 9 6 11 13 13 11 16 16 3 2
\ No newline at end of file