diff --git a/HTTP.cabal b/HTTP.cabal
--- a/HTTP.cabal
+++ b/HTTP.cabal
@@ -1,5 +1,5 @@
 Name: HTTP
-Version: 4000.2.21
+Version: 4000.2.22
 Cabal-Version: >= 1.8
 Build-type: Simple
 License: BSD3
diff --git a/Network/HTTP/Proxy.hs b/Network/HTTP/Proxy.hs
--- a/Network/HTTP/Proxy.hs
+++ b/Network/HTTP/Proxy.hs
@@ -25,10 +25,11 @@
 #endif
 -}
 
-import Control.Monad ( when, mplus, join, liftM2)
+import Control.Monad ( when, mplus, join, liftM2 )
 
 #if defined(WIN32)
 import Network.HTTP.Base ( catchIO )
+import Control.Monad ( liftM )
 import Data.List ( isPrefixOf )
 #endif
 import Network.HTTP.Utils ( dropWhileTail, chopAtDelim )
