diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index f006d80fc67..3d7a5709478 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -3259,7 +3259,7 @@ class Form
             // Generate the date part, depending on the use or not of the javascript calendar
             if (empty($conf->global->MAIN_POPUP_CALENDAR) || $conf->global->MAIN_POPUP_CALENDAR == "eldy")
             {
-                $base=DOL_URL_ROOT.'/core/lib/';
+                $base=DOL_URL_ROOT.'/core/';
                 $reset_scripts .= 'resetDP(\''.$base.'\',\''.$prefix.'\',\''.$langs->trans("FormatDateShortJava").'\',\''.$langs->defaultlang.'\');';
             }
             else