diff --git a/src/lib/helpers/ability.js b/src/lib/helpers/ability.js
index 7cd907aad..3667c7219 100644
--- a/src/lib/helpers/ability.js
+++ b/src/lib/helpers/ability.js
@@ -43,6 +43,7 @@ export const ability = toReactiveAbility(createMongoAbility([]));
  * @returns {void}
  */
 export const updateAbilities = (rules) => {
+  if (!Array.isArray(rules)) return;
   ability.update(rules);
 };