diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index dface41fb67..4522e23872f 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2675,7 +2675,7 @@ function dol_print_ip($ip,$mode=0)
  */
 function getUserRemoteIP()
 {
-	$ip = $_SERVER['HTTP_X_FORWARDED_FOR']?$_SERVER['HTTP_X_FORWARDED_FOR']:(($_SERVER['HTTP_CLIENT_IP']?$_SERVER['HTTP_CLIENT_IP']:$_SERVER['REMOTE_ADDR']));
+	$ip = empty($_SERVER['HTTP_X_FORWARDED_FOR'])? (empty($_SERVER['HTTP_CLIENT_IP'])?(empty($_SERVER['REMOTE_ADDR'])?'':$_SERVER['REMOTE_ADDR']):$_SERVER['HTTP_CLIENT_IP']) : $_SERVER['HTTP_X_FORWARDED_FOR'];
 	return $ip;
 }