diff --git a/extra/modules/root.py b/extra/modules/root.py
index 7410e72..b561207 100644
--- a/extra/modules/root.py
+++ b/extra/modules/root.py
@@ -69,6 +69,9 @@ def category_get_limit(self):
     return 7
 Category.get_limit = category_get_limit
 
+Category.TEXT_ATTRIBUTES = ['name', 'url_name', 'description', 'homepage_position']
+Category.INT_ATTRIBUTES = ['position', 'limit']
+
 
 class FormsRootDirectory(wcs.forms.root.RootDirectory):