diff --git a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CheckIrElementVisitor.kt b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CheckIrElementVisitor.kt
index dd8620a80ec..831b3f44a1f 100644
--- a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CheckIrElementVisitor.kt
+++ b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CheckIrElementVisitor.kt
@@ -53,8 +53,7 @@ class CheckIrElementVisitor(
         if (!config.checkTypes)
             return
 
-        // TODO: compare IR types instead.
-        if (expectedType.isEqualTo(type)) {
+        if (!expectedType.isEqualTo(type)) {
             reportError(this, "unexpected expression.type: expected $expectedType, got ${type.render()}")
         }
     }