diff --git a/services/jellyfin.nix b/services/jellyfin.nix
index d2488c4..0e46627 100644
--- a/services/jellyfin.nix
+++ b/services/jellyfin.nix
@@ -9,7 +9,7 @@
     	};
 
     	# Ensure Jellyfin can write thumbnails/artwork to media directories
-    	systemd.services.jellyfin.serviceConfig.UMask = "0002";
+    	systemd.services.jellyfin.serviceConfig.UMask = lib.mkForce "0002";
 
     	users.users.jellyfin.extraGroups = [ "media" "video" "render" ];
 	};