diff --git a/addons/project/security/project_security.xml b/addons/project/security/project_security.xml
index cf8a333a71d..bf3b8c07998 100644
--- a/addons/project/security/project_security.xml
+++ b/addons/project/security/project_security.xml
@@ -40,5 +40,12 @@
         <field name="groups" eval="[(4,ref('project.group_project_user'))]"/>
     </record>
 
+    <record model="ir.rule" id="project_manager_all_project_tasks_rule">
+        <field name="name">Project Managers: all tasks from all projects</field>
+        <field name="model_id" ref="model_project_task"/>
+        <field name="domain_force">[(1,'=',1)]</field>
+        <field name="groups" eval="[(4,ref('project.group_project_manager'))]"/>
+    </record>
+
 </data>
 </openerp>