diff --git a/addons/project/models/project.py b/addons/project/models/project.py
index 3b3030b26e4..0baf2fbff58 100644
--- a/addons/project/models/project.py
+++ b/addons/project/models/project.py
@@ -399,6 +399,7 @@ class Project(models.Model):
         action_context = safe_eval(action['context']) if action['context'] else {}
         action_context.update(self._context)
         action_context['search_default_parent_res_name'] = self.name
+        action_context.pop('group_by', None)
         return dict(action, context=action_context)
 
     # ---------------------------------------------------