diff --git a/netbox/extras/api/urls.py b/netbox/extras/api/urls.py
index c135280ea..f4968d004 100644
--- a/netbox/extras/api/urls.py
+++ b/netbox/extras/api/urls.py
@@ -18,7 +18,7 @@ router.APIRootView = ExtrasRootView
 router.register(r'_choices', views.ExtrasFieldChoicesViewSet, basename='field-choice')
 
 # Custom field choices
-router.register(r'_custom_field_choices', views.CustomFieldChoicesViewSet, base_name='custom-field-choice')
+router.register(r'_custom_field_choices', views.CustomFieldChoicesViewSet, basename='custom-field-choice')
 
 # Graphs
 router.register(r'graphs', views.GraphViewSet)