diff --git a/default.nix b/default.nix
index 9ff512091dc2c9900a7faaacb58918699a42e44e..a6b9510ccf0ce3194a086c9e17325be4be9a7210 100644
--- a/default.nix
+++ b/default.nix
@@ -20,7 +20,7 @@ let
     # the haskell.nix functionality itself as an overlay.
     (haskellNix.nixpkgsArgs // {
       overlays = haskellNix.nixpkgsArgs.overlays ++ [
-        (import ./odlnix/overlays.nix)
+        (import ./oldnix/overlays.nix)
       ];
     });
 in pkgs.haskell-nix.project {