diff --git a/addons/project/i18n/project.pot b/addons/project/i18n/project.pot
index 4cfc2c35011..828ccb78830 100644
--- a/addons/project/i18n/project.pot
+++ b/addons/project/i18n/project.pot
@@ -2781,6 +2781,11 @@ msgstr ""
 msgid "Next Activity Type"
 msgstr ""
 
+#. module: project
+#: model_terms:ir.ui.view,arch_db:project.portal_tasks_list
+msgid "No Customer"
+msgstr ""
+
 #. module: project
 #: model_terms:ir.ui.view,arch_db:project.portal_tasks_list
 msgid "No Milestone"
diff --git a/addons/project/views/project_portal_project_task_templates.xml b/addons/project/views/project_portal_project_task_templates.xml
index 5f445ef9555..5ccadcfe3d0 100644
--- a/addons/project/views/project_portal_project_task_templates.xml
+++ b/addons/project/views/project_portal_project_task_templates.xml
@@ -54,7 +54,11 @@
                             <th t-if="groupby == 'status'" t-attf-colspan="{{grouped_tasks_colspan}}">
                                 <span class="text-truncate" t-field="tasks[0].sudo().state"/></th>
                             <th t-if="groupby == 'customer'" t-attf-colspan="{{grouped_tasks_colspan}}">
-                                <span class="text-truncate" t-field="tasks[0].sudo().partner_id.name"/></th>
+                                <span t-if="tasks[0].sudo().partner_id"
+                                      class="text-truncate"
+                                      t-field="tasks[0].sudo().partner_id.name"/>
+                                <span t-else="">No Customer</span>
+                            </th>
                         </tr>
                     </tbody>
                     <tbody t-if="tasks">