diff --git a/telethon/_sessions/sqlite.py b/telethon/_sessions/sqlite.py
index b41975fb..2ea419be 100644
--- a/telethon/_sessions/sqlite.py
+++ b/telethon/_sessions/sqlite.py
@@ -245,7 +245,7 @@ class SQLiteSession(Session):
         try:
             c.executemany(
                 'insert or replace into entity values (?,?,?)',
-                [(e.id, e.access_hash, e.ty.value) for e in entities]
+                [(e.id, e.access_hash, e.ty) for e in entities]
             )
         finally:
             c.close()