diff --git a/flake.nix b/flake.nix
index ddd254c..4a819ca 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,12 +8,17 @@
   outputs = { self, nixpkgs }:
   let
     system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
+    overlay = final: prev: {
+      waterfox = final.callPackage ./pkgs/waterfox/default.nix { };
+      waterfox-bin = final.callPackage ./pkgs/waterfox-bin/default.nix { };
+    };
+    pkgs = nixpkgs.legacyPackages.${system}.extend overlay;
   in {
+    overlays.default = overlay;
+
     packages.${system} = {
-      waterfox = pkgs.callPackage ./pkgs/waterfox/default.nix { };
-      waterfox-bin = pkgs.callPackage ./pkgs/waterfox-bin/default.nix { };
-      default = self.packages.${system}.waterfox-bin;
+      inherit (pkgs) waterfox waterfox-bin;
+      default = pkgs.waterfox-bin;
     };
   };
 }