diff --git a/CRM/UF/Page/ProfileEditor.php b/CRM/UF/Page/ProfileEditor.php
index f30c8d5dd4eb..90f7394625ee 100644
--- a/CRM/UF/Page/ProfileEditor.php
+++ b/CRM/UF/Page/ProfileEditor.php
@@ -212,6 +212,7 @@ static function convertCiviModelToBackboneModel($extends, $title, $availableFiel
         'custom_group_id' => $customGroup->id,
         'extends_entity_column_id' => $customGroup->extends_entity_column_id,
         'extends_entity_column_value' => CRM_Utils_Array::explodePadded($customGroup->extends_entity_column_value),
+        'is_reserved' => $customGroup->is_reserved ? TRUE : FALSE,
       );
       $result['sections'][$sectionName] = $section;
     }
diff --git a/js/view/crm.designer.js b/js/view/crm.designer.js
index e59c1d98e36c..7011f5ff5165 100644
--- a/js/view/crm.designer.js
+++ b/js/view/crm.designer.js
@@ -328,7 +328,7 @@
               items.push({data: paletteFieldModel.getLabel(), attr: {'class': 'crm-designer-palette-field', 'data-plm-cid': paletteFieldModel.cid}});
             });
           }
-          if (section.is_addable) {
+          if (section.is_addable && !section.is_reserved) {
             items.push({data: 'placeholder', attr: {'class': 'crm-designer-palette-add', 'data-entity': ufEntityModel.get('entity_name'), 'data-section': sectionKey}});
           }
           if (items.length > 0) {