diff --git a/idea/idea-analysis/src/org/jetbrains/jet/plugin/highlighter/JetPsiChecker.java b/idea/idea-analysis/src/org/jetbrains/jet/plugin/highlighter/JetPsiChecker.kt
similarity index 100%
rename from idea/idea-analysis/src/org/jetbrains/jet/plugin/highlighter/JetPsiChecker.java
rename to idea/idea-analysis/src/org/jetbrains/jet/plugin/highlighter/JetPsiChecker.kt