diff --git a/scripts/pi-hole/php/auth.php b/scripts/pi-hole/php/auth.php
index 8bbf8342..993b057b 100644
--- a/scripts/pi-hole/php/auth.php
+++ b/scripts/pi-hole/php/auth.php
@@ -30,14 +30,11 @@ function log_and_die($message) {
 }
 
 function check_cors() {
-    $setupVars = parse_ini_file("/etc/pihole/setupVars.conf");
-    $ipv4 = isset($setupVars["IPV4_ADDRESS"]) ? explode("/", $setupVars["IPV4_ADDRESS"])[0] : $_SERVER['SERVER_ADDR'];
-    $ipv6 = isset($setupVars["IPV6_ADDRESS"]) ? explode("/", $setupVars["IPV6_ADDRESS"])[0] : $_SERVER['SERVER_ADDR'];
+    $ip = $_SERVER['SERVER_ADDR'];
 
     // Check CORS
     $AUTHORIZED_HOSTNAMES = array(
-        $ipv4,
-        $ipv6,
+        $ip,
         str_replace(array("[","]"), array("",""), $_SERVER["SERVER_NAME"]),
         "pi.hole",
         "localhost"