diff --git a/rattail_nationbuilder/app.py b/rattail_nationbuilder/app.py
index 0fa8ccb..e18f15f 100644
--- a/rattail_nationbuilder/app.py
+++ b/rattail_nationbuilder/app.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2023 Lance Edgar
+#  Copyright © 2010-2024 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -36,7 +36,7 @@ class NationBuilderProvider(RattailProvider):
         if 'nationbuilder' not in self.handlers:
             spec = self.config.get('rattail', 'nationbuilder.handler',
                                    default='rattail_nationbuilder.app:NationBuilderHandler')
-            factory = self.load_object(spec)
+            factory = self.app.load_object(spec)
             self.handlers['nationbuilder'] = factory(self.config, **kwargs)
         return self.handlers['nationbuilder']