diff --git a/WaiAppStatic/CmdLine.hs b/WaiAppStatic/CmdLine.hs
--- a/WaiAppStatic/CmdLine.hs
+++ b/WaiAppStatic/CmdLine.hs
@@ -38,6 +38,12 @@
     , host :: String
     }
 
+#if MIN_VERSION_optparse_applicative(0, 10, 0)
+option' = option auto
+#else
+option' = option
+#endif
+
 args :: Parser Args
 args = Args
     <$> strOption
@@ -52,7 +58,7 @@
            <> metavar "INDEX"
            <> help "index files to serve when a directory is required"
             )))
-    <*> option
+    <*> option'
             ( long "port"
            <> short 'p'
            <> metavar "PORT"
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:         2.0.1
+version:         2.0.1.1
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>