diff --git a/upload/source/class/class_member.php b/upload/source/class/class_member.php
index 1091a3e3665f6068840f1b795ff4d9f1b7ea58b3..b039f9533f533fbcab3fbf67284d404225b6cdbd 100644
--- a/upload/source/class/class_member.php
+++ b/upload/source/class/class_member.php
@@ -539,7 +539,7 @@ class register_ctl {
 			}
 			if($sendurl) {
 				$mobile = $this->setting['mobile']['mobileregister'] ? '' : ($this->setting['mobile']['allowmobile'] ? '&mobile=no' : '');
-				$hashstr = urlencode(authcode("$_GET[email]\t$_G[timestamp]", 'ENCODE', $_G['config']['security']['authkey']));
+				$hashstr = urlencode(authcode("$email\t$_G[timestamp]", 'ENCODE', $_G['config']['security']['authkey']));
 				$registerurl = $_G['setting']['securesiteurl']."member.php?mod=".$this->setting['regname']."&hash={$hashstr}&email={$email}{$mobile}";
 				$email_register_message = lang('email', 'email_register_message', array(
 					'bbname' => $this->setting['bbname'],