diff --git a/camisatoshi_wordpress_reports/order.py b/camisatoshi_wordpress_reports/order.py
index 12c555a..a12665e 100644
--- a/camisatoshi_wordpress_reports/order.py
+++ b/camisatoshi_wordpress_reports/order.py
@@ -110,7 +110,7 @@ class Orders:
         unsettled_orders = []
 
         for order in self:
-            if not order.is_settled_um():
+            if not order.is_settled_with_um():
                 unsettled_orders.append(order)
 
         return Orders(unsettled_orders)