diff --git a/src/sunstone/public/app/tabs/provision-tab.js b/src/sunstone/public/app/tabs/provision-tab.js
index 80fb5cff0b..346bf43889 100644
--- a/src/sunstone/public/app/tabs/provision-tab.js
+++ b/src/sunstone/public/app/tabs/provision-tab.js
@@ -1116,6 +1116,14 @@ define(function(require) {
               $(".provision_capacity_selector", create_vm_context),
               template_json.VMTEMPLATE);
 
+            provisionInvalidCapacity = function(input){
+              if(!$(input).closest(".accordion-navigation").hasClass("active")){
+                $("a", $(input).closest(".accordion-navigation")).click();
+              }
+            };
+
+            $(".provision_capacity_selector input[required]", create_vm_context).attr("oninvalid", "provisionInvalidCapacity(this)");
+
             var disksContext = $(".provision_disk_selector", create_vm_context);
             if (Config.provision.create_vm.isEnabled("disk_resize")) {
               DisksResize.insert(template_json, disksContext);