diff --git a/modules/nixos/core/nix.nix b/modules/nixos/core/nix.nix
index c8c3342..593b19e 100644
--- a/modules/nixos/core/nix.nix
+++ b/modules/nixos/core/nix.nix
@@ -4,7 +4,7 @@ let
   importOverlays = builtins.map
     (overlay: overlay { inherit lib inputs; })
     (builtins.filter 
-      (file: builtins.match file "*.nix")
+      (file: builtins.match "(.*.nix)" (builtins.toString file) != [])
       (lib.filesystem.listFilesRecursive ../../../overlays));
 in {
   nix = {
@@ -24,6 +24,6 @@ in {
       allowUnfree = true;
     };
     hostPlatform = lib.mkDefault "x86_64-linux";
-    overlays = importOverlays;
+    overlays = builtins.trace importOverlays;
   };
 }