diff --git a/htdocs/core/js/timesheet.js b/htdocs/core/js/timesheet.js
index 0c8c9ff3245..e9e66787aa0 100644
--- a/htdocs/core/js/timesheet.js
+++ b/htdocs/core/js/timesheet.js
@@ -1,5 +1,6 @@
 /* Copyright (C) 2014      delcroip            <delcroip@gmail.com>
  * Copyright (C) 2015-2017 Laurent Destailleur <eldy@users.sourceforge.net>
+ * Copyright (C) 2021      Josep Lluís Amador  <joseplluis@lliuretic.cat>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -257,7 +258,7 @@ function updateTotal(days,mode)
        		result=parseTime(jQuery('.totalDay'+stringdays).text(),taskTime);
         	if (result >= 0)
         	{
-        		totalhour = totalhour + taskTime.getHours();
+        		totalhour = totalhour + taskTime.getHours() + result*24;
         		totalmin = totalmin + taskTime.getMinutes();
         	}
         }