diff --git a/dav_base/config/modules.py b/dav_base/config/modules.py
index 78673a0..39744d0 100644
--- a/dav_base/config/modules.py
+++ b/dav_base/config/modules.py
@@ -65,9 +65,7 @@ class ModuleMeta:
 
     @property
     def root_url_name(self):
-        if self.url_namespace:
-            return '{}:{}'.format(self.url_namespace, self._root_url_name)
-        return self._root_url_name
+        return '{}:{}'.format(self.url_namespace, self._root_url_name)
 
     def _load_from_package(self):
         package_name = self._package_name