diff --git a/overlays/nixpkgs/firefox.nix b/overlays/nixpkgs/firefox.nix
index 91a0756..5c97d4d 100644
--- a/overlays/nixpkgs/firefox.nix
+++ b/overlays/nixpkgs/firefox.nix
@@ -69,5 +69,5 @@
         ];
       };
     };
-  };
+  }.config.env;
 }