diff --git a/app/database/beatmapset.py b/app/database/beatmapset.py
index 7ead18f..aee26e4 100644
--- a/app/database/beatmapset.py
+++ b/app/database/beatmapset.py
@@ -183,7 +183,7 @@ class BeatmapsetResp(BeatmapsetBase):
     discussion_enabled: bool = True
     status: str
     ranked: int
-    legacy_thread_url: str = ""
+    legacy_thread_url: str | None = ""
     is_scoreable: bool
     hype: BeatmapHype | None = None
     availability: BeatmapAvailability