diff --git a/navalplanner-webapp/src/main/webapp/common/css/navalpro_zk.css b/navalplanner-webapp/src/main/webapp/common/css/navalpro_zk.css
index 4a26d9983..5990a0e65 100644
--- a/navalplanner-webapp/src/main/webapp/common/css/navalpro_zk.css
+++ b/navalplanner-webapp/src/main/webapp/common/css/navalpro_zk.css
@@ -1156,6 +1156,6 @@ tr.z-tree-row-seld, tr.z-list-item-seld,
     cursor: default;
 }
 
-.z-menu-popup-cnt .z-menu-item-over .z-menu-item-img {
+.submenu .z-menu-popup-cnt .z-menu-item-over .z-menu-item-img {
     background-image: url(../img/ico_submenu.png);
 }
diff --git a/navalplanner-webapp/src/main/webapp/common/layout/_customMenu.zul b/navalplanner-webapp/src/main/webapp/common/layout/_customMenu.zul
index 9c4f03e3e..5168fd488 100644
--- a/navalplanner-webapp/src/main/webapp/common/layout/_customMenu.zul
+++ b/navalplanner-webapp/src/main/webapp/common/layout/_customMenu.zul
@@ -31,7 +31,7 @@
             ctrlKeys="^k#f2" onCtrlKey="doCtrlKey()" sclass="mainmenu" autodrop="true">
 
                 <menu forEach="${menuContainer.customMenuItems}" label="${i18n:_(each.name)}" class="${each.activeParent?'current-section':''}" >
-                <menupopup>
+                <menupopup sclass="submenu">
                     <menuitem forEach="${each.children}" label="${i18n:_(each.name)}"
                         href='${each.url}' />
                 </menupopup>