diff --git a/addons/project/project.py b/addons/project/project.py
index a5cd8928dfc..df1995b1f2b 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -45,6 +45,7 @@ class project_task_type(osv.osv):
     _defaults = {
         'sequence': 1
     }
+    _order = 'sequence'
 project_task_type()
 
 class project(osv.osv):