diff --git a/scripts/nix-push.in b/scripts/nix-push.in
index 19cc3bed64..c27e813b48 100644
--- a/scripts/nix-push.in
+++ b/scripts/nix-push.in
@@ -48,7 +48,7 @@ if ($ARGV[0] eq "--copy") {
        $targetArchivesUrl = shift @ARGV;
     }
     else {
-       $targetArchivesUrl = "file:/$localArchivesDir";
+       $targetArchivesUrl = "file://$localArchivesDir";
     }
 }
 else {