diff --git a/Hidden/ParseRegexStr.hs b/Hidden/ParseRegexStr.hs
--- a/Hidden/ParseRegexStr.hs
+++ b/Hidden/ParseRegexStr.hs
@@ -14,7 +14,7 @@
 			     setMode, setModes, getModes,
 			     isModeI, isModeM, isModeX )
 import Text.ParserCombinators.MTLParse
-                           ( runParse, spot, token, tokens, mzero, mplus,
+                           ( runParse, spot, spotBack, token, tokens, mzero, mplus,
                              still, parseNot, endOfInput, MonadParse,
 			     MonadPlus,
                              list, greedyNeList, optional )
@@ -64,7 +64,7 @@
     ( isModeI >>= \ic ->
        spot selfTest >>= return . Select . applyIf ic ignoreCase . (==) )
     `mplus`
-    parseBrace
+    parseOpenBrace `mplus` parseCloseBrace
     `mplus`
     ( flip (ifM isModeM) mzero $ token '.' >> return (Select $ const True) )
     `mplus`
@@ -149,7 +149,12 @@
 concatMapParse :: MonadPlus m => (b -> m a) -> [b] -> m a
 concatMapParse f = foldr mplus mzero . map f
 
-parseBrace :: RegexSrcParser RegexAction
-parseBrace = do ret <- spot (flip elem "{}")
-                still $ parseNot () $ spot isDigit
-                return $ Select (==ret)
+parseOpenBrace :: RegexSrcParser RegexAction
+parseOpenBrace = do ret <- token '{'
+                    still $ parseNot () $ spot isDigit
+                    return $ Select (==ret)
+
+parseCloseBrace :: RegexSrcParser RegexAction
+parseCloseBrace = do still $ parseNot () $ spotBack isDigit
+                     ret <- token '}'
+		     return $ Select (==ret)
diff --git a/Hidden/TestMain.hs b/Hidden/TestMain.hs
--- a/Hidden/TestMain.hs
+++ b/Hidden/TestMain.hs
@@ -208,4 +208,5 @@
  , "abcdcfcg"                           ~=? gsubRegexPR "[.+$]" "c" "ab.d+f$g"
  , Just ( ("", ("abc", "")), [] )       ~=? matchRegexPR "(?<=abc)" "abc"
  , Just ( ("{}", ("", "")), []  )       ~=? matchRegexPR "{}" "{}"
+ , Just ( ("3{}4", ("", "")), [] )      ~=? matchRegexPR "3{}4" "3{}4"
  ]
diff --git a/regexpr.cabal b/regexpr.cabal
--- a/regexpr.cabal
+++ b/regexpr.cabal
@@ -1,5 +1,5 @@
 Name:		regexpr
-Version:	0.3.2
+Version:	0.3.3
 License:	LGPL
 License-File:	LICENSE
 Author:		Yoshikuni Jujo <PAF01143@nifty.ne.jp>