diff --git a/Yesod/Static.hs b/Yesod/Static.hs
--- a/Yesod/Static.hs
+++ b/Yesod/Static.hs
@@ -66,7 +66,6 @@
 import qualified Data.ByteString.Lazy as L
 import qualified Data.Serialize
 import Data.Text (Text, pack)
-import Data.Monoid (mempty)
 import qualified Data.Map as M
 import Data.IORef (readIORef, newIORef, writeIORef)
 import Network.Wai (pathInfo, rawPathInfo, responseLBS)
@@ -307,7 +306,7 @@
         pack' <- [|pack|]
         qs <- if makeHash
                     then do hash <- qRunIO $ base64md5File $ pathFromRawPieces fp f
-                            [|[(pack $(lift hash), mempty)]|]
+                            [|[("etag" :: Text, pack $(lift hash))]|]
                     else return $ ListE []
         return
             [ SigD routeName $ ConT route
diff --git a/yesod-static.cabal b/yesod-static.cabal
--- a/yesod-static.cabal
+++ b/yesod-static.cabal
@@ -1,5 +1,5 @@
 name:            yesod-static
-version:         1.0.0.2
+version:         1.0.0.3
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>