diff --git a/include/class-monero-gateway.php b/include/class-monero-gateway.php
index d6af566..43ffab1 100644
--- a/include/class-monero-gateway.php
+++ b/include/class-monero-gateway.php
@@ -115,7 +115,7 @@ class Monero_Gateway extends WC_Payment_Gateway
     public function validate_monero_address_field($key,$address)
     {
         if($this->settings['confirm_type'] == 'viewkey') {
-            if (strlen($address) == 95 && substr($address, 0, 1) == '4')
+            if (strlen($address) == 97)
                 if(self::$cryptonote->verify_checksum($address))
                     return $address;
             self::$_errors[] = 'Wownero address is invalid';