diff --git a/seed_database.py b/seed_database.py
index 295d1ee24faff6bc22412399af7c01543a77d14c..6ed51f0bcb08864afbe839037459a1966c2aaa3b 100644
--- a/seed_database.py
+++ b/seed_database.py
@@ -79,9 +79,7 @@ with app.app_context():
     flask_item_sets = []
     for item_set in item_sets:
         # Items will be added to the sets later.
-        flask_item_set = ItemSet(
-            id=item_set[0], description=item_set[1], quantity=item_set[3]
-        )
+        flask_item_set = ItemSet(id=item_set[0], description=item_set[1])
         flask_item_sets.append(flask_item_set)
 
     # Create repositories.