@@ -76,7 +76,7 @@ main = withManager defaultManagerSettings $ \m -> do
7676
7777 putStrLn "Creating tarball"
7878 (Nothing, Nothing, Nothing, ph) <- createProcess
79− (proc "tar" $ "czf" : "haddock.tar.xz" : "index.html" : "style.css" : dirs)
79+ (proc "tar" $ "cJf" : "haddock.tar.xz" : "index.html" : "style.css" : dirs)
8080 { cwd = Just root
8181 }
8282 ec <- waitForProcess ph