diff --git a/addons/project/project_view.xml b/addons/project/project_view.xml
index f53ffa4e737..4fd382d0bb5 100644
--- a/addons/project/project_view.xml
+++ b/addons/project/project_view.xml
@@ -267,8 +267,8 @@
 					<field name="project_id"/>
 					<field name="user_id"/>
 					<field name="date_deadline"/>
-					<field name="planned_hours"/>
-					<field name="effective_hours"/>
+					<field name="planned_hours" sum="Planned hours"/>
+					<field name="effective_hours" sum="Effective hours"/>
 					<field name="priority"/>
 					<field name="state"/>
 				</tree>