diff --git a/gui/ngXosViews/serviceTopology/src/templates/topology_canvas.tpl.html b/gui/ngXosViews/serviceTopology/src/templates/topology_canvas.tpl.html
index 35857a3..4c992b1 100644
--- a/gui/ngXosViews/serviceTopology/src/templates/topology_canvas.tpl.html
+++ b/gui/ngXosViews/serviceTopology/src/templates/topology_canvas.tpl.html
@@ -1,4 +1,4 @@
-<select class="form-control" ng-options="s as s.name for s in vm.subscribers" ng-model="vm.selectedSubscriber" ng-change="vm.getServiceChain(vm.selectedSubscriber)">
+<select class="form-control subscriber-select" ng-options="s as s.name for s in vm.subscribers" ng-model="vm.selectedSubscriber" ng-change="vm.getServiceChain(vm.selectedSubscriber)">
     <option value="">Select a subscriber...</option>
 </select>
 <!--<div class="service-details">-->