diff --git a/backend/app/api/api_v1/routers/platform.py b/backend/app/api/api_v1/routers/platform.py
index 3e9d218..aa28460 100644
--- a/backend/app/api/api_v1/routers/platform.py
+++ b/backend/app/api/api_v1/routers/platform.py
@@ -238,7 +238,7 @@ async def action_data(
 
 @r.get(
     "/flow/{appid}",tags=["App"],
-    response_model=ApiReturnModel[Flow|None],
+    response_model=ApiReturnModel[List[Flow]|None],
     response_model_exclude_none=True,
 )
 async def flow_details(