diff --git a/Network/HTTP/Client/Response.hs b/Network/HTTP/Client/Response.hs
--- a/Network/HTTP/Client/Response.hs
+++ b/Network/HTTP/Client/Response.hs
@@ -18,7 +18,7 @@
 import Data.Default.Class (def)
 
 import qualified Network.HTTP.Types as W
-import Network.URI (parseURIReference)
+import Network.URI (parseURIReference, escapeURIString, isAllowedInURI)
 
 import Network.HTTP.Client.Types
 
@@ -56,7 +56,8 @@
 getRedirectedRequest req hs cookie_jar code
     | 300 <= code && code < 400 = do
         l' <- lookup "location" hs
-        req' <- setUriRelative req =<< parseURIReference (S8.unpack l')
+        let l = escapeURIString isAllowedInURI (S8.unpack l')
+        req' <- setUriRelative req =<< parseURIReference l
         return $
             if code == 302 || code == 303
                 -- According to the spec, this should *only* be for status code
diff --git a/http-client.cabal b/http-client.cabal
--- a/http-client.cabal
+++ b/http-client.cabal
@@ -1,5 +1,5 @@
 name:                http-client
-version:             0.4.2.1
+version:             0.4.2.2
 synopsis:            An HTTP client engine, intended as a base layer for more user-friendly packages.
 description:         This codebase has been refactored from http-conduit.
 homepage:            https://github.com/snoyberg/http-client