diff --git a/Network/Wai/Application/Static.hs b/Network/Wai/Application/Static.hs
--- a/Network/Wai/Application/Static.hs
+++ b/Network/Wai/Application/Static.hs
@@ -212,7 +212,9 @@
         mimetype <- ssGetMimeType ss file
         let filesize = fileGetSize file
         let headers = ("Content-Type", mimetype)
-                    : ("Content-Length", S8.pack $ show filesize)
+                    -- Let Warp provide the content-length, since it takes
+                    -- range requests into account
+                    -- : ("Content-Length", S8.pack $ show filesize)
                     : ch
         sendResponse $ fileToResponse file H.status200 headers
 
diff --git a/wai-app-static.cabal b/wai-app-static.cabal
--- a/wai-app-static.cabal
+++ b/wai-app-static.cabal
@@ -1,5 +1,5 @@
 name:            wai-app-static
-version:         3.0.0.1
+version:         3.0.0.2
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>