diff --git a/app/community/util.py b/app/community/util.py
index 36f3363d..19079d14 100644
--- a/app/community/util.py
+++ b/app/community/util.py
@@ -170,7 +170,7 @@ def retrieve_mods_and_backfill(community_id: int):
             return
 
         # download 50 old posts
-        if community.ap_public_url:
+        if community.ap_outbox_url:
             outbox_request = get_request(community.ap_outbox_url, headers={'Accept': 'application/activity+json'})
             if outbox_request.status_code == 200:
                 outbox_data = outbox_request.json()