diff --git a/addons/project/project_view.xml b/addons/project/project_view.xml
index 80283ee92d1..7d14f923847 100644
--- a/addons/project/project_view.xml
+++ b/addons/project/project_view.xml
@@ -376,7 +376,7 @@
                     </h1>
                     <group>
                         <group>
-                            <field name="project_id"  on_change="onchange_project(project_id)" context="{'default_use_tasks':1}"/>
+                            <field name="project_id" domain="[('state', '!=', 'close')]" on_change="onchange_project(project_id)" context="{'default_use_tasks':1}"/>
                             <field name="user_id" attrs="{'readonly':[('state','in',['done', 'cancelled'])]}" options='{"no_open": True}'/>
                             <field name="planned_hours" widget="float_time"
                                     groups="project.group_time_work_estimation_tasks"