diff --git a/notebook/static/notebook/js/toolbar.js b/notebook/static/notebook/js/toolbar.js
index 295975c302..0022c44287 100644
--- a/notebook/static/notebook/js/toolbar.js
+++ b/notebook/static/notebook/js/toolbar.js
@@ -92,10 +92,14 @@ define(['jquery','base/js/i18n'], function($, i18n) {
action = that.actions.get(el.action);
action_name = el.action
}
+ var title = el.label;
+ if(action && action.help) {
+ title = i18n.msg._(action.help) || el.label;
+ }
var button = $('')
.addClass('btn btn-default')
.attr("aria-label", el.label)
- .attr("title", i18n.msg._(action.help)||el.label)
+ .attr("title", title)
.append(
$("").addClass(el.icon||(action||{icon:'fa-exclamation-triangle'}).icon).addClass('fa')
);