diff --git a/modules/k8s.nix b/modules/k8s.nix
index 3a8041e..cc217e2 100644
--- a/modules/k8s.nix
+++ b/modules/k8s.nix
@@ -135,7 +135,7 @@ let
 
         spec = mkOption {
           description = "Module spec";
-          type = types.submodule cr.module;
+          type = types.either types.attrs (types.submodule cr.module);
           default = {};
         };
       };