diff --git a/src/GeoIP.php b/src/GeoIP.php
index 61865cc..41c3778 100644
--- a/src/GeoIP.php
+++ b/src/GeoIP.php
@@ -230,6 +230,7 @@ public function getCache()
     public function getClientIP()
     {
         $remotes_keys = [
+            'HTTP_X_FORWARDED_IP',
             'HTTP_X_FORWARDED_FOR',
             'HTTP_CLIENT_IP',
             'HTTP_X_FORWARDED',