diff --git a/backend/chainlit/server.py b/backend/chainlit/server.py
index 41215c675c..4fa024e4fc 100644
--- a/backend/chainlit/server.py
+++ b/backend/chainlit/server.py
@@ -1005,6 +1005,7 @@ async def get_shared_thread(
     if not isinstance(metadata, dict):
         metadata = {}
 
+    user_can_view = False
     if getattr(config.code, "on_shared_thread_view", None):
         try:
             user_can_view = await config.code.on_shared_thread_view(