diff --git a/lib/ace/autocomplete.js b/lib/ace/autocomplete.js
index 3bb035aa..2544c858 100644
--- a/lib/ace/autocomplete.js
+++ b/lib/ace/autocomplete.js
@@ -67,6 +67,7 @@ var Autocomplete = function() {
             e.stop();
         }.bind(this));
         this.popup.focus = this.editor.focus.bind(this.editor);
+        this.popup.on("show", this.tooltipTimer.bind(null, null));
         this.popup.on("select", this.tooltipTimer.bind(null, null));
         this.popup.on("changeHoverMarker", this.tooltipTimer.bind(null, null));
         return this.popup;