diff --git a/webapp/controller/SignController.class.php b/webapp/controller/SignController.class.php
index 200aeeb..9a76725 100644
--- a/webapp/controller/SignController.class.php
+++ b/webapp/controller/SignController.class.php
@@ -281,7 +281,7 @@ class SignController{
         $dayid = ($week - 1) * 7 + $_REQUEST['sign_id'];
         //如果大于配置表最后一周，按最后一周奖励
         $g_conf_sign_cluster = require('../res/signDaily@signDaily.php');
-        if ($dayid >= count($g_conf_sign_cluster)) {
+        if ($dayid > count($g_conf_sign_cluster)) {
             $dayid = count($g_conf_sign_cluster)  + $_REQUEST['sign_id'] - 7;
         }
         $s = $this->getSign($dayid + 90000);