diff --git a/common/constants.php b/common/constants.php
index c9b21cd81..6ac1da735 100644
--- a/common/constants.php
+++ b/common/constants.php
@@ -53,7 +53,7 @@ else
  */
 if (isset($_SERVER['HTTP_CF_CONNECTING_IP']))
 {
-	include_once __DIR__ . '/framework/filters/ipfilter.php';
+	include_once __DIR__ . '/framework/filters/IpFilter.php';
 	Rhymix\Framework\Filters\IpFilter::getCloudFlareRealIP();
 }
 if (isset($_SERVER['REMOTE_ADDR']) && preg_match('/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$/', $_SERVER['REMOTE_ADDR'], $matches))