tree-wide: use mapCartesianProduct

1 files changed, 2 insertions, 2 deletions

diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 4c62e964c34c4..0f9b712c6df53 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -284,7 +284,7 @@ in
       in
         # We will generate every possible pair of WM and DM.
         concatLists (
-            builtins.map
+            lib.mapCartesianProduct
             ({dm, wm}: let
               sessionName = "${dm.name}${optionalString (wm.name != "none") ("+" + wm.name)}";
               script = xsession dm wm;
@@ -312,7 +312,7 @@ in
                   providedSessions = [ sessionName ];
                 })
             )
-            (cartesianProductOfSets { dm = dms; wm = wms; })
+            { dm = dms; wm = wms; }
           );
   };