diff --git a/cmd.proto b/cmd.proto
index e36ae97..273dda6 100644
--- a/cmd.proto
+++ b/cmd.proto
@@ -389,7 +389,7 @@ enum ErrorCode {
     INVALID_ACCOUNT                              = 101; // Account不合法
     INVALID_TIMESTAMP                            = 102; // 头信息缺少时间戳或不正确
     INVALID_SIGNATURE                            = 103; // 头信息缺少签名
-    AUTH_FAIL                                    = 104; // 签名较验失败
+    AUTH_FAIL                                    = 104; // 签名校验失败
     DISABLED_ACCOUNT                             = 105; // 账号已禁用
     INVALID_CONTENT_TYPE                         = 110; // 非法的Content-Type
     READ_BODY                                    = 111; // 读取 http body 失败
@@ -449,4 +449,4 @@ enum MAX {
     U8                                           = 64;
     U32                                          = 8;
     FLAG                                         = 4;
-}
\ No newline at end of file
+}