diff --git a/machines/modules/docker-stack.nix b/machines/modules/docker-stack.nix
index eee03ef..18017ab 100644
--- a/machines/modules/docker-stack.nix
+++ b/machines/modules/docker-stack.nix
@@ -232,7 +232,7 @@ in
     description = lib.mdDoc "Docker stacks to deploy using systemd services.";
   };
 
-  config = lib.mkIfattrNames (cfg.stacks != { }) {
+  config = lib.mkIf (cfg.stacks != { }) {
     systemd.timers = lib.mapAttrs' (n: v: lib.nameValuePair "docker-stack-${n}" (mkStackTimer n)) cfg.stacks;
     systemd.services = lib.mapAttrs' (n: v: lib.nameValuePair "docker-stack-${n}" (mkStackService n v)) cfg.stacks;