diff --git a/utils/ghc-pkg/Main.hs b/utils/ghc-pkg/Main.hs
index b1aaaba7b09d0c11b38d3e688d00294f6f4cd8b6..e16511fb0c0dadd4c5eef5443fe6ea2c6f6dc51c 100644
--- a/utils/ghc-pkg/Main.hs
+++ b/utils/ghc-pkg/Main.hs
@@ -1189,8 +1189,7 @@ getLibDir = fmap (fmap (</> "lib")) $ getExecDir "/bin/ghc-pkg.exe"
 getExecDir :: String -> IO (Maybe String)
 getExecDir cmd =
     getExecPath >>= maybe (return Nothing) removeCmdSuffix
-    where unDosifyPath = subst '\\' '/'
-          initN n = reverse . drop n . reverse
+    where initN n = reverse . drop n . reverse
           removeCmdSuffix = return . Just . initN (length cmd) . unDosifyPath
 
 getExecPath :: IO (Maybe String)