diff --git a/ChangeLog b/ChangeLog
index 53062d29a18..dae68c53c11 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -62,9 +62,10 @@ For users:
 - New: Can choose menu entry to show with external site module.
 - New: Add hidden option MAIN_PDF_MARGIN_LEFT, MAIN_PDF_MARGIN_RIGHT, MAIN_PDF_MARGIN_TOP, MAIN_PDF_MARGIN_BOTTOM
        to force margins of generated PDF.
-- New:  [ task #314 ] Can define if prof id are mandatory or not
-- New: Add button on order card to create intervention from services
-- New: Add search box to find products by supplier reference
+- New:  [ task #314 ] Can define if prof id are mandatory or not.
+- New: Add button on order card to create intervention from services.
+- New: Add search box to find products by supplier reference.
+- New: Add option MAIN_HELPCENTER_LINKTOUSE to define target link "I need help" onto logon page. 
 
 New experimental modules:
 - New: Add margin management module.
diff --git a/htdocs/core/tpl/login.tpl.php b/htdocs/core/tpl/login.tpl.php
index 81d446281ae..0597896a07b 100644
--- a/htdocs/core/tpl/login.tpl.php
+++ b/htdocs/core/tpl/login.tpl.php
@@ -166,7 +166,9 @@ if ($forgetpasslink || $helpcenterlink) {
 	}
 
 	if ($helpcenterlink) {
-		echo '<a style="color: #888888; font-size: 10px" href="'.DOL_URL_ROOT.'/support/index.php" target="_blank">';
+		$url=DOL_URL_ROOT.'/support/index.php';
+		if (! empty($conf->global->MAIN_HELPCENTER_LINKTOUSE)) $url=$conf->global->MAIN_HELPCENTER_LINKTOUSE;
+		echo '<a style="color: #888888; font-size: 10px" href="'.dol_escape_htmltag($url).'" target="_blank">';
 		if ($forgetpasslink) {
 			echo '&nbsp;-&nbsp;';
 		} else {