diff --git a/cognee/api/v1/add/add.py b/cognee/api/v1/add/add.py
index 3f3331899..a521b316b 100644
--- a/cognee/api/v1/add/add.py
+++ b/cognee/api/v1/add/add.py
@@ -164,7 +164,7 @@ async def add(
         - TAVILY_API_KEY: YOUR_TAVILY_API_KEY
 
     """
-    if preferred_loaders:
+    if preferred_loaders is not None:
         transformed = {}
         for item in preferred_loaders:
             if isinstance(item, dict):