diff --git a/RegExpSupport/src/org/intellij/lang/regexp/RegExpTT.java b/RegExpSupport/src/org/intellij/lang/regexp/RegExpTT.java
index b60b7bd85e19..c9f9b9bb8a09 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/RegExpTT.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/RegExpTT.java
@@ -121,6 +121,7 @@ public interface RegExpTT {
             ESC_CTRL_CHARACTER,
             ESC_CHARACTER,
             CTRL_CHARACTER,
+            CTRL,
             UNICODE_CHAR,
             HEX_CHAR, BAD_HEX_VALUE,
             OCT_CHAR, BAD_OCT_VALUE,
diff --git a/RegExpSupport/testData/RETest.xml b/RegExpSupport/testData/RETest.xml
index 696057dc5826..3fee59182737 100644
--- a/RegExpSupport/testData/RETest.xml
+++ b/RegExpSupport/testData/RETest.xml
@@ -603,6 +603,22 @@
       <pattern>\Q\j\E</pattern>
       <expected>OK</expected>
     </test>
+    <test>
+      <pattern>\c0</pattern>
+      <expected>OK</expected>
+    </test>
+    <test>
+      <pattern>\C-0</pattern>
+      <expected>OK</expected>
+    </test>
+    <test>
+      <pattern>\M-0</pattern>
+      <expected>OK</expected>
+    </test>
+    <test>
+      <pattern>\M-\C-0</pattern>
+      <expected>OK</expected>
+    </test>
   </escapes>
 
   <anchors>