diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/LabelNormalizationMethodTransformer.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/LabelNormalizationMethodTransformer.kt
index fcab0e02d0a..51462cb42bb 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/LabelNormalizationMethodTransformer.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/LabelNormalizationMethodTransformer.kt
@@ -30,7 +30,7 @@ class LabelNormalizationMethodTransformer : MethodTransformer() {
 
     private class TransformerForMethod(val methodNode: MethodNode) {
         val instructions = methodNode.instructions
-        val newLabelNodes = SmartIdentityTable<Label, LabelNode>()
+        val newLabelNodes = SmartIdentityTable<LabelNode, LabelNode>()
 
         fun transform() {
             if (rewriteLabelInstructions()) {
@@ -48,11 +48,11 @@ class LabelNormalizationMethodTransformer : MethodTransformer() {
                 if (thisNode is LabelNode) {
                     val prevNode = thisNode.previous
                     if (prevNode is LabelNode) {
-                        newLabelNodes[thisNode.label] = prevNode
+                        newLabelNodes[thisNode] = prevNode
                         removedAnyLabels = true
                         thisNode = instructions.removeNodeGetNext(thisNode)
                     } else {
-                        newLabelNodes[thisNode.label] = thisNode
+                        newLabelNodes[thisNode] = thisNode
                         thisNode = thisNode.next
                     }
                 } else {
@@ -145,12 +145,12 @@ class LabelNormalizationMethodTransformer : MethodTransformer() {
         }
 
         private fun getNew(oldLabelNode: LabelNode): LabelNode {
-            return newLabelNodes[oldLabelNode.label]
+            return newLabelNodes[oldLabelNode]
                 ?: throw IllegalStateException("Label wasn't found during iterating through instructions")
         }
 
         private fun getNewOrOld(oldLabelNode: LabelNode): LabelNode =
-            newLabelNodes[oldLabelNode.label] ?: oldLabelNode
+            newLabelNodes[oldLabelNode] ?: oldLabelNode
     }
 }