diff --git a/src/ninegate-1.0/src/Cadoles/CoreBundle/Resources/public/css/style.css b/src/ninegate-1.0/src/Cadoles/CoreBundle/Resources/public/css/style.css
index f91477aa..1ac0964a 100644
--- a/src/ninegate-1.0/src/Cadoles/CoreBundle/Resources/public/css/style.css
+++ b/src/ninegate-1.0/src/Cadoles/CoreBundle/Resources/public/css/style.css
@@ -127,6 +127,11 @@ body {
     border-bottom: 5px solid #FFF;
 }
 
+.dropdown-menu {
+    max-height: 450px;
+    overflow-y: auto;
+}
+
 .dropdown-submenu {
     position: relative;
 }