diff --git a/titles/mai2/schema/item.py b/titles/mai2/schema/item.py
index 3b7d8d4..8639ae5 100644
--- a/titles/mai2/schema/item.py
+++ b/titles/mai2/schema/item.py
@@ -728,10 +728,11 @@ class Mai2ItemData(BaseData):
         # Do an anti-join with the mai2_item_item table to exclude any
         # items the users have already owned.
         if exclude_owned:
-            sql = sql.join(
+            sql = sql.outerjoin(
                 item,
                 (present.c.itemKind == item.c.itemKind)
                 & (present.c.itemId == item.c.itemId)
+                & (item.c.user == user_id)
             )
             condition &= (item.c.itemKind.is_(None) & item.c.itemId.is_(None))