diff --git a/src/dede/config.php b/src/dede/config.php
index 57badb7e..e66b3036 100755
--- a/src/dede/config.php
+++ b/src/dede/config.php
@@ -64,7 +64,7 @@ function csrf_check()
 {
     global $token;
 
-    if(!isset($token) || strcasecmp($token, $_SESSION['token']) != 0){
+    if(!isset($token) || strcasecmp($token, $_SESSION['token']) !== 0){
         echo '<a href="http://bbs.dedecms.com/907721.html">DedeCMS:CSRF Token Check Failed!</a>';
         exit;
     }