diff --git a/htdocs/core/lib/geturl.lib.php b/htdocs/core/lib/geturl.lib.php
index 66300a1948b..ff63ca251c3 100644
--- a/htdocs/core/lib/geturl.lib.php
+++ b/htdocs/core/lib/geturl.lib.php
@@ -187,7 +187,7 @@ function getURLContent($url, $postorget = 'GET', $param = '', $followlocation =
 					$info['content'] = 'Error bad hostname IP (private or reserved range). Must be an external URL.';
 					break;
 				}
-				if ($iptocheck == $_SERVER["SERVER_ADDR"]) {
+				if (!empty($_SERVER["SERVER_ADDR"]) && $iptocheck == $_SERVER["SERVER_ADDR"]) {
 					$info['http_code'] = 400;
 					$info['content'] = 'Error bad hostname IP (IP is a local IP). Must be an external URL.';
 					break;