diff --git a/dist/css/AdminLTE.css b/dist/css/AdminLTE.css
index 8d4534474..dc8fbd31b 100644
--- a/dist/css/AdminLTE.css
+++ b/dist/css/AdminLTE.css
@@ -541,7 +541,8 @@ a:focus {
   margin-right: 10px;
   margin-top: 3px;
 }
-.sidebar-menu li.active > a > .fa-angle-left {
+.sidebar-menu > li.open > a > .fa-angle-left,
+.sidebar-menu .treeview-menu > li.open > a > .fa-angle-left {
   -webkit-transform: rotate(-90deg);
   -ms-transform: rotate(-90deg);
   -o-transform: rotate(-90deg);