diff --git a/compiler/testData/codegen/box/delegatedProperty/propertyMetadataShouldBeCached.kt b/compiler/testData/codegen/box/delegatedProperty/propertyMetadataShouldBeCached.kt
index 478761c7b37..f0d15c42425 100644
--- a/compiler/testData/codegen/box/delegatedProperty/propertyMetadataShouldBeCached.kt
+++ b/compiler/testData/codegen/box/delegatedProperty/propertyMetadataShouldBeCached.kt
@@ -41,7 +41,7 @@ fun box(): String {
     baz + A.bar
 
     if (metadatas.keys.size != 3)
-        return "Fail: only three instances of KProperty should have been created\n${metadatas.keySet()}"
+        return "Fail: only three instances of KProperty should have been created\n${metadatas.keys}"
 
     return "OK"
 }