diff --git a/addons/survey/views/survey_views.xml b/addons/survey/views/survey_views.xml
index 72d6cc823e2..7b3a8529ef7 100644
--- a/addons/survey/views/survey_views.xml
+++ b/addons/survey/views/survey_views.xml
@@ -18,7 +18,7 @@
                     <group expand="0" string="Group By">
                         <filter name="group_by_survey" string="Survey" domain="[]" context="{'group_by': 'survey_id'}"/>
                         <filter string="Email" name="group_by_email" domain="[]" context="{'group_by': 'email'}"/>
-                        <filter string="Partner" name="group_by_partner" domain="[]" context="{'group_by': ['partner_id']}"/>
+                        <filter string="Partner" name="group_by_partner" domain="[]" context="{'group_by': 'partner_id'}"/>
                     </group>
                 </search>
             </field>