diff --git a/tailbone/views/purchases/core.py b/tailbone/views/purchases/core.py
index 2c31e904..2cd28be8 100644
--- a/tailbone/views/purchases/core.py
+++ b/tailbone/views/purchases/core.py
@@ -355,21 +355,23 @@ class PurchaseView(MasterView):
 
     @classmethod
     def defaults(cls, config):
+        cls._purchase_defaults(config)
+        cls._defaults(config)
+
+    @classmethod
+    def _purchase_defaults(cls, config):
         route_prefix = cls.get_route_prefix()
         url_prefix = cls.get_url_prefix()
         permission_prefix = cls.get_permission_prefix()
         model_key = cls.get_model_key()
         model_title = cls.get_model_title()
 
-        cls._defaults(config)
-
         # receiving worksheet
         config.add_tailbone_permission(permission_prefix, '{}.receiving_worksheet'.format(permission_prefix),
                                        "Print receiving worksheet for {}".format(model_title))
         config.add_route('{}.receiving_worksheet'.format(route_prefix), '{}/{{{}}}/receiving-worksheet'.format(url_prefix, model_key))
         config.add_view(cls, attr='receiving_worksheet', route_name='{}.receiving_worksheet'.format(route_prefix),
                         permission='{}.receiving_worksheet'.format(permission_prefix))
-        
 
 
 def includeme(config):