diff --git a/src/Umbraco.Web.UI.Client/src/views/components/umb-groups-builder.html b/src/Umbraco.Web.UI.Client/src/views/components/umb-groups-builder.html
index 78a48db73d..de575113f8 100644
--- a/src/Umbraco.Web.UI.Client/src/views/components/umb-groups-builder.html
+++ b/src/Umbraco.Web.UI.Client/src/views/components/umb-groups-builder.html
@@ -98,7 +98,7 @@
     <umb-box ng-repeat="(tabIndex, tab) in tabs track by tab.key" ng-show="isUngroupedPropertiesVisible(tab)" class="umb-group-builder__ungrouped-properties">
         <umb-box-content>
             <ul class="umb-group-builder__properties" ui-sortable="sortableOptionsProperty" ng-model="tab.properties" ng-show="tab.properties.length > 0 || sortingMode">
-                <li ng-repeat="(propertyIndex, property) in tab.properties track by property.alias" ng-class="{'umb-group-builder__property-sortable': sortingMode && !property.inherited}">
+                <li ng-repeat="(propertyIndex, property) in tab.properties track by propertyIndex" ng-class="{'umb-group-builder__property-sortable': sortingMode && !property.inherited}">
                     <umb-content-type-property
                         ng-if="property.propertyState !== 'init'"
                         property="property"
@@ -146,7 +146,7 @@
                 val-tab-alias="tab-content-{{group.type === 0 ? group.parentAlias : group.alias}}">
 
                 <ul class="umb-group-builder__properties" ui-sortable="sortableOptionsProperty" ng-model="group.properties" ng-show="group.properties.length > 0 || sortingMode">
-                    <li ng-repeat="(propertyIndex, property) in group.properties track by property.alias" ng-class="{'umb-group-builder__property-sortable': sortingMode && !property.inherited}">
+                    <li ng-repeat="(propertyIndex, property) in group.properties track by propertyIndex" ng-class="{'umb-group-builder__property-sortable': sortingMode && !property.inherited}">
                         <umb-content-type-property
                             ng-if="property.propertyState !== 'init'"
                             property="property"