diff --git a/services/bazarr.nix b/services/bazarr.nix
index 84715cb..57b5a64 100644
--- a/services/bazarr.nix
+++ b/services/bazarr.nix
@@ -13,7 +13,7 @@
     };
 
     # Ensure subtitles written by bazarr are group-writable
-    systemd.services.bazarr.serviceConfig.UMask = "0002";
+    systemd.services.bazarr.serviceConfig.UMask = lib.mkForce "0002";
     
     users.users.bazarr = {
       isSystemUser = true;
diff --git a/services/radarr.nix b/services/radarr.nix
index 944e33b..66470d4 100644
--- a/services/radarr.nix
+++ b/services/radarr.nix
@@ -13,7 +13,7 @@
     };
 
     # Ensure files created by radarr are group-writable
-    systemd.services.radarr.serviceConfig.UMask = "0002";
+    systemd.services.radarr.serviceConfig.UMask = lib.mkForce "0002";
     
     # Media group is already created in qbittorrent-nox.nix
     # Just make sure radarr is in it
diff --git a/services/sonarr.nix b/services/sonarr.nix
index f2b560a..375cf71 100644
--- a/services/sonarr.nix
+++ b/services/sonarr.nix
@@ -13,7 +13,7 @@
     };
 
     # Ensure files created by sonarr are group-writable
-    systemd.services.sonarr.serviceConfig.UMask = "0002";
+    systemd.services.sonarr.serviceConfig.UMask = lib.mkForce "0002";
     
     # Media group is already created in qbittorrent-nox.nix
     # Just make sure sonarr is in it