diff --git a/compiler/visualizer/render-fir/src/org/jetbrains/kotlin/compiler/visualizer/FirVisualizer.kt b/compiler/visualizer/render-fir/src/org/jetbrains/kotlin/compiler/visualizer/FirVisualizer.kt
index 58657fd296c..13f215e4cfd 100644
--- a/compiler/visualizer/render-fir/src/org/jetbrains/kotlin/compiler/visualizer/FirVisualizer.kt
+++ b/compiler/visualizer/render-fir/src/org/jetbrains/kotlin/compiler/visualizer/FirVisualizer.kt
@@ -397,8 +397,8 @@ class FirVisualizer(private val firFile: FirFile) : BaseRenderer() {
         }
 
         override fun visitComparisonExpression(comparisonExpression: FirComparisonExpression, data: StringBuilder) {
-            data.append("CMP(${comparisonOperator.operation.operator}, ")
-            comparisonOperator.compareToCall.accept(this, data)
+            data.append("CMP(${comparisonExpression.operation.operator}, ")
+            comparisonExpression.compareToCall.accept(this, data)
             data.append(")")
         }