diff --git a/pyrogram/methods/advanced/save_file.py b/pyrogram/methods/advanced/save_file.py
index e6a259a9..49b65097 100644
--- a/pyrogram/methods/advanced/save_file.py
+++ b/pyrogram/methods/advanced/save_file.py
@@ -143,7 +143,7 @@ class SaveFile:
 
             session = self.media_sessions.get(dc_id)
             if not session:
-                session = Session(
+                session = self.media_sessions[dc_id] = Session(
                     self, dc_id, await self.storage.auth_key(),
                     await self.storage.test_mode(), is_media=True
                 )