diff --git a/htdocs/includes/jquery/css/smoothness/jquery-ui-latest.custom.css b/htdocs/includes/jquery/css/smoothness/jquery-ui-latest.custom.css
index 1b3742a683b..6c7542d9010 100644
--- a/htdocs/includes/jquery/css/smoothness/jquery-ui-latest.custom.css
+++ b/htdocs/includes/jquery/css/smoothness/jquery-ui-latest.custom.css
@@ -53,6 +53,13 @@
 	position: absolute;
 	top: 0; /* #8656 */
 	cursor: default;
+	max-height: 400px;
+	overflow-y: auto;
+	/* prevent horizontal scrollbar */
+	overflow-x: hidden;
+	/* add padding to account for vertical scrollbar */
+	padding-right: 20px;
+	
 }
 
 /* workarounds */