diff --git a/api/tacticalrmm/tacticalrmm/cache.py b/api/tacticalrmm/tacticalrmm/cache.py
index feab416b..8d781151 100644
--- a/api/tacticalrmm/tacticalrmm/cache.py
+++ b/api/tacticalrmm/tacticalrmm/cache.py
@@ -13,4 +13,4 @@ class TacticalRedisCache(RedisCache):
 
 class TacticalDummyCache(DummyCache):
     def delete_many_pattern(self, pattern: str, version: Optional[int] = None) -> None:
-        pass
+        return None