diff --git a/pkgs/applications/networking/browsers/firefox/wrapper.nix b/pkgs/applications/networking/browsers/firefox/wrapper.nix
index 52fe1ffe2d0e..4713320e0685 100644
--- a/pkgs/applications/networking/browsers/firefox/wrapper.nix
+++ b/pkgs/applications/networking/browsers/firefox/wrapper.nix
@@ -105,7 +105,7 @@ let
 
       enterprisePolicies =
       {
-        policies = lib.optionalAttrs usesNixExtensions  {
+        policies = {
           DisableAppUpdate = true;
         } //
         lib.optionalAttrs usesNixExtensions {