diff --git a/css/tt-rss.css b/css/tt-rss.css
index 445af3122..866e95f29 100644
--- a/css/tt-rss.css
+++ b/css/tt-rss.css
@@ -370,6 +370,7 @@ div.prefHelp {
 	white-space : nowrap;
 	display : table-cell;
 	color : #999;
+	overflow : hidden;
 }
 
 #main-toolbar > *,