diff --git a/compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.java b/compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.kt
similarity index 95%
rename from compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.java
rename to compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.kt
index 14934466660..baeeea72a88 100644
--- a/compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.java
+++ b/compiler/tests-common/tests/org/jetbrains/kotlin/test/TargetBackend.kt
@@ -16,7 +16,7 @@
 
 package org.jetbrains.kotlin.test;
 
-public enum TargetBackend {
+enum class TargetBackend {
     ANY,
     JVM,
     JS