diff --git a/nixos/modules/services/display-managers/ly.nix b/nixos/modules/services/display-managers/ly.nix
index 1141e4f5dfac..07e3dd25dd5b 100644
--- a/nixos/modules/services/display-managers/ly.nix
+++ b/nixos/modules/services/display-managers/ly.nix
@@ -67,13 +67,7 @@ in
       settings = mkOption {
         type =
           with lib.types;
-          attrsOf (
-            nullOr (oneOf [
-              str
-              int
-              bool
-            ])
-          );
+          attrsOf iniFmt.lib.types.atom;
         default = { };
         example = {
           load = false;