diff --git a/Web/Twitter/Types.hs b/Web/Twitter/Types.hs
--- a/Web/Twitter/Types.hs
+++ b/Web/Twitter/Types.hs
@@ -360,7 +360,7 @@
     } deriving (Show, Eq, Data, Typeable, Generic)
 
 parseIntegral :: Integral a => Text -> Parser a
-parseIntegral v = either (fail $ "couldn't parse stringized int: " ++ show v) (return . fst) $ decimal v
+parseIntegral v = either (\_ -> fail $ "couldn't parse stringized int: " ++ show v) (return . fst) $ decimal v
 
 epochMsToUTCTime :: Int64 -> UTCTime
 epochMsToUTCTime = posixSecondsToUTCTime . fromRational . (% 1000) . fromIntegral
diff --git a/twitter-types.cabal b/twitter-types.cabal
--- a/twitter-types.cabal
+++ b/twitter-types.cabal
@@ -1,5 +1,5 @@
 name:              twitter-types
-version:           0.10.0
+version:           0.10.1
 license:           BSD3
 license-file:      LICENSE
 author:            Takahiro HIMURA