diff --git a/coworking_relation/views/relation_views.xml b/coworking_relation/views/relation_views.xml
index 26b4bd6..f2cd216 100644
--- a/coworking_relation/views/relation_views.xml
+++ b/coworking_relation/views/relation_views.xml
@@ -11,8 +11,8 @@
       <sheet>
         <group name="group_top">
           <group name="group_left">
-            <field name="coworker1" domain="['&amp;', ('id', '!=', coworker2), ('is_coworker', '=', True)]" />
-            <field name="coworker2" domain="['&amp;', ('id', '!=', coworker1), ('is_coworker', '=', True)]" />
+            <field name="coworker1" domain="[('id', '!=', coworker2), ('is_coworker', '=', True)]" />
+            <field name="coworker2" domain="[('id', '!=', coworker1), ('is_coworker', '=', True)]" />
             <field name="relation" />
           </group>
         </group>
@@ -27,8 +27,8 @@
   <field name="model">coworking.relation</field>
   <field name="arch" type="xml">
     <tree editable="True">
-      <field name="coworker1" domain="[('id', '!=', coworker2)]" />
-      <field name="coworker2" domain="[('id', '!=', coworker1)]" />
+      <field name="coworker1" domain="[('id', '!=', coworker2), ('is_coworker', '=', True)]" />
+      <field name="coworker2" domain="[('id', '!=', coworker1), ('is_coworker', '=', True)]" />
       <field name="relation" />
     </tree>
   </field>