diff --git a/addons/web_calendar/static/lib/dhtmlxScheduler/codebase/dhtmlxscheduler_debug.js b/addons/web_calendar/static/lib/dhtmlxScheduler/codebase/dhtmlxscheduler_debug.js
index 6b2e961051c..30384b83b5c 100644
--- a/addons/web_calendar/static/lib/dhtmlxScheduler/codebase/dhtmlxscheduler_debug.js
+++ b/addons/web_calendar/static/lib/dhtmlxScheduler/codebase/dhtmlxscheduler_debug.js
@@ -3408,8 +3408,10 @@ scheduler.render_event_bar=function(ev){
 
     var bg_color = (ev.color?("background-color:"+ev.color+";"):"");
     var color = (ev.textColor?("color:"+ev.textColor+";"):"");
+	
+    var title_line = scheduler.templates.event_bar_text(ev.start_date,ev.end_date,ev);
 	
-	var html='<div event_id="'+ev.id+'" class="'+cs+'" style="position:absolute; top:'+y+'px; left:'+x+'px; width:'+(x2-x-15)+'px;'+color+''+bg_color+''+(ev._text_style||"")+'">';
+	var html='<div title="'+ title_line +'" event_id="'+ev.id+'" class="'+cs+'" style="position:absolute; top:'+y+'px; left:'+x+'px; width:'+(x2-x-15)+'px;'+color+''+bg_color+''+(ev._text_style||"")+'">';
 	
 	if (ev._timed)
 		html+=scheduler.templates.event_bar_date(ev.start_date,ev.end_date,ev);