diff --git a/Network/Wai/Parse.hs b/Network/Wai/Parse.hs
--- a/Network/Wai/Parse.hs
+++ b/Network/Wai/Parse.hs
@@ -383,7 +383,7 @@
                 NoBound -> do
                     -- don't emit newlines, in case it's part of a bound
                     let (toEmit, front') =
-                            if not (S8.null bs) && S8.last bs `elem` "\r\n"
+                            if not (S8.null bs) && S8.last bs `elem` ['\r','\n']
                                 then let (x, y) = S.splitAt (S.length bs - 2) bs
                                       in (x, S.append y)
                                 else (bs, id)
diff --git a/wai-extra.cabal b/wai-extra.cabal
--- a/wai-extra.cabal
+++ b/wai-extra.cabal
@@ -1,5 +1,5 @@
 Name:                wai-extra
-Version:             3.0.3.1
+Version:             3.0.3.2
 Synopsis:            Provides some basic WAI handlers and middleware.
 description:         API docs and the README are available at <http://www.stackage.org/package/wai-extra>.
 License:             MIT