diff --git a/app/prune.py b/app/prune.py
index d779ba3..8cb5814 100644
--- a/app/prune.py
+++ b/app/prune.py
@@ -57,12 +57,12 @@ async def _prune_old_inbox_objects(
             models.InboxObject.announced_via_outbox_object_ap_id.is_(None),
             # Keep objects related to local conversations
             or_(
-                models.InboxObject.conversation.not_like(f"{BASE_URL}/%"),
+                models.InboxObject.conversation.not_like(f"{BASE_URL}%"),
                 models.InboxObject.conversation.is_(None),
             ),
             # Keep activities related to the outbox (like Like/Announce/Follow...)
             or_(
-                models.InboxObject.activity_object_ap_id.not_like(f"{BASE_URL}/*"),
+                models.InboxObject.activity_object_ap_id.not_like(f"{BASE_URL}*"),
                 models.InboxObject.activity_object_ap_id.is_(None),
             ),
             # Keep direct messages