diff --git a/idea/src/org/jetbrains/kotlin/idea/versions/KotlinRuntimeLibraryUtil.java b/idea/src/org/jetbrains/kotlin/idea/versions/KotlinRuntimeLibraryUtil.kt
similarity index 100%
rename from idea/src/org/jetbrains/kotlin/idea/versions/KotlinRuntimeLibraryUtil.java
rename to idea/src/org/jetbrains/kotlin/idea/versions/KotlinRuntimeLibraryUtil.kt