diff --git a/application/libraries/Aauth.php b/application/libraries/Aauth.php
index f36f6a33..0aed7b70 100644
--- a/application/libraries/Aauth.php
+++ b/application/libraries/Aauth.php
@@ -713,7 +713,8 @@ public function create_user($email, $pass, $name='') {
 			$this->error($this->CI->lang->line('aauth_error_email_exists'));
 			$valid = FALSE;
 		}
-		if (!valid_email($email)){
+		$valid_email = (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
+		if (!$valid_email){
 			$this->error($this->CI->lang->line('aauth_error_email_invalid'));
 			$valid = FALSE;
 		}