diff --git a/htdocs/core/class/ldap.class.php b/htdocs/core/class/ldap.class.php
index 20a9b85cf86..3d92d5f9019 100644
--- a/htdocs/core/class/ldap.class.php
+++ b/htdocs/core/class/ldap.class.php
@@ -738,6 +738,10 @@ class Ldap
 	 */
 	function serverPing($host, $port=389, $timeout=1)
 	{
+		// Replace ldaps:// by ssl://
+		if (preg_match('/^ldaps:\/\/([^\/]+)\/?$/',$host, $regs)) {
+			$host = 'ssl://'.$regs[1];
+		}
 		$op = @fsockopen($host, $port, $errno, $errstr, $timeout);
 		if (!$op) return false; //DC is N/A
 		else {