diff --git a/rattail_nationbuilder/config.py b/rattail_nationbuilder/config.py
index de2aef3..0c6fa3c 100644
--- a/rattail_nationbuilder/config.py
+++ b/rattail_nationbuilder/config.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.
 #
@@ -24,10 +24,10 @@
 Config Extension
 """
 
-from rattail.config import ConfigExtension
+from wuttjamaican.conf import WuttaConfigExtension
 
 
-class RattailNationBuilderExtension(ConfigExtension):
+class RattailNationBuilderExtension(WuttaConfigExtension):
     """
     Config extension for rattail-nationbuilder
     """
@@ -36,7 +36,7 @@ class RattailNationBuilderExtension(ConfigExtension):
     def configure(self, config):
 
         # rattail import-nationbuilder
-        config.setdefault('rattail.importing', 'to_rattail.from_nationbulder.import.default_handler',
+        config.setdefault('rattail.importing.to_rattail.from_nationbulder.import.default_handler',
                           'rattail_nationbuilder.importing.nationbuilder:FromNationBuilderToRattail')
-        config.setdefault('rattail.importing', 'to_rattail.from_nationbuilder.import.default_cmd',
+        config.setdefault('rattail.importing.to_rattail.from_nationbuilder.import.default_cmd',
                           'rattail import-nationbuilder')