diff --git a/addons/project/views/project_views.xml b/addons/project/views/project_views.xml
index ca3d08172e5..9e30401b7b5 100644
--- a/addons/project/views/project_views.xml
+++ b/addons/project/views/project_views.xml
@@ -1008,7 +1008,7 @@
                                 <group>
                                     <field name="analytic_account_id" groups="analytic.group_analytic_accounting" context="{'default_partner_id': partner_id}"/>
                                     <field name="analytic_tag_ids" groups="analytic.group_analytic_tags" widget="many2many_tags"/>
-                                    <field name="parent_id" domain="[('parent_id', '=', False)]" attrs="{'invisible': [('allow_subtasks', '=', False)]}" groups="base.group_no_one"/>
+                                    <field name="parent_id" attrs="{'invisible': [('allow_subtasks', '=', False)]}" groups="base.group_no_one"/>
                                     <field name="sequence" groups="base.group_no_one"/>
                                     <field name="email_from" invisible="1"/>
                                     <field name="email_cc" groups="base.group_no_one"/>