diff --git a/server/flask/application/backend/data/migration.py b/server/flask/application/backend/data/migration.py
index 7a8c79c..70ed84c 100644
--- a/server/flask/application/backend/data/migration.py
+++ b/server/flask/application/backend/data/migration.py
@@ -4,10 +4,10 @@ import sys
 def migration_0_to_1(db_path: str):
     db = sqlite3.connect(db_path, detect_types=sqlite3.PARSE_DECLTYPES)
     db_cursor = db.cursor()
-    db_cursor.execute("ALTER TABLE session ADD media_token TEXT NOT NULL;")
+    db_cursor.execute("ALTER TABLE session ADD media_token TEXT NOT NULL DEFAULT '';")
     db.commit()
     db.close()
 
 if __name__ == "__main__":
     print(sys.argv[1])
-    #migration_0_to_1(sys.argv[1])
\ No newline at end of file
+    #migration_0_to_1(sys.argv[1])