diff --git a/RegExpSupport/src/org/intellij/lang/regexp/RegExpHighlighter.java b/RegExpSupport/src/org/intellij/lang/regexp/RegExpHighlighter.java
index 3ad677c6726a..f88d376f99f7 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/RegExpHighlighter.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/RegExpHighlighter.java
@@ -94,7 +94,6 @@ public class RegExpHighlighter extends SyntaxHighlighterBase {
     ourMap.put(RegExpTT.ESC_CTRL_CHARACTER, CHAR_CLASS);
     ourMap.put(RegExpTT.NAMED_CHARACTER, CHAR_CLASS);
     ourMap.put(RegExpTT.CATEGORY_SHORT_HAND, CHAR_CLASS);
-    ourMap.put(RegExpTT.CATEGORY_SHORT_HAND, CHAR_CLASS);
     ourMap.put(RegExpTT.RUBY_NAMED_GROUP_REF, CHAR_CLASS);
     ourMap.put(RegExpTT.RUBY_NAMED_GROUP_CALL, CHAR_CLASS);
     ourMap.put(RegExpTT.RUBY_QUOTED_NAMED_GROUP_REF, CHAR_CLASS);