diff --git a/nixos/tests/installer.nix b/nixos/tests/installer.nix
index 30496a51e171..6c7b97d055bc 100644
--- a/nixos/tests/installer.nix
+++ b/nixos/tests/installer.nix
@@ -651,7 +651,7 @@ let
         # put global maintainers here, individuals go into makeInstallerTest fkt call
         maintainers = (meta.maintainers or [ ]);
         # non-EFI tests can only run on x86
-        platforms = lib.mkIf (!isEfi) [
+        platforms = mkIf (!isEfi) [
           "x86_64-linux"
           "x86_64-darwin"
           "i686-linux"