diff --git a/include/pages/register/register.inc.php b/include/pages/register/register.inc.php
index 60d988c6..8b6b7a81 100644
--- a/include/pages/register/register.inc.php
+++ b/include/pages/register/register.inc.php
@@ -27,7 +27,11 @@ if ($setting->getValue('disable_invitations') && $setting->getValue('lock_regist
       // Check if recaptcha is enabled, process form data if valid or disabled
       isset($_POST['token']) ? $token = $_POST['token'] : $token = '';
       if ($user->register(@$_POST['username'], @$_POST['coinaddress'], @$_POST['password1'], @$_POST['password2'], @$_POST['pin'], @$_POST['email1'], @$_POST['email2'], @$_POST['tac'], $token)) {
-        (!$setting->getValue('accounts_confirm_email_disabled')) ? $_SESSION['POPUP'][] = array('CONTENT' => 'Please check your mailbox to activate this account') : $_SESSION['POPUP'][] = array('CONTENT' => 'Account created, please login');
+        (!$setting->getValue('accounts_confirm_email_disabled')) ? $_SESSION['POPUP'][] = array('CONTENT' => 'Please check your mailbox to activate this account', 'TYPE' => 'alert alert-warning') : $_SESSION['POPUP'][] = array('CONTENT' => 'Account created, please login', 'TYPE' => 'alert alert-warning');
+      } else if {
+        if (!$this->bitcoin->validateaddress($_POST['coinaddress'])) {
+          $_SESSION['POPUP'][] = array('CONTENT' => 'Coin address is not valid', 'TYPE' => 'alert alert-warning');
+        }
       } else {
         $_SESSION['POPUP'][] = array('CONTENT' => 'Unable to create account: ' . $user->getError(), 'TYPE' => 'alert alert-danger');
       }