diff --git a/platform/core-api/src/com/intellij/lang/LanguageUtil.java b/platform/core-api/src/com/intellij/lang/LanguageUtil.java
index b5e2313628f2..96dae6f63f34 100644
--- a/platform/core-api/src/com/intellij/lang/LanguageUtil.java
+++ b/platform/core-api/src/com/intellij/lang/LanguageUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2014 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,7 +54,7 @@ public final class LanguageUtil {
   }
 
   @NotNull
-  public static Language[] getLanguageDialects(final Language base) {
+  public static Language[] getLanguageDialects(@NotNull final Language base) {
     final List<Language> list = ContainerUtil.findAll(Language.getRegisteredLanguages(), new Condition<Language>() {
       @Override
       public boolean value(final Language language) {