diff --git a/app/views/account/login.html.erb b/app/views/account/login.html.erb
index 23acabd1f..cfe9cd695 100644
--- a/app/views/account/login.html.erb
+++ b/app/views/account/login.html.erb
@@ -62,7 +62,7 @@
         });
 
         $mail.blur(function (event) {
-            if (/^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/.test(this.value) == false){
+            if (/^[a-zA-Z0-9]+([._\\]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/.test(this.value) == false){
                 $('#mail_req').html( '<span style="color: #c00202">邮件格式不对</span>').show();
                 $mail_correct = false;
                 return ;