diff --git a/spec/vmess.md b/spec/vmess.md
index 89e4ab487..2107cbb88 100644
--- a/spec/vmess.md
+++ b/spec/vmess.md
@@ -45,7 +45,7 @@
 
 ## 基于时间的用户 ID Hash
 
-H = MD5
-K = 用户 ID (16 字节)
-M = UTC 时间，精确到秒，取值为当前时间的前后 30 秒随机值(8 字节)
-Hash = HMAC(H, K, M)
\ No newline at end of file
+* H = MD5
+* K = 用户 ID (16 字节)
+* M = UTC 时间，精确到秒，取值为当前时间的前后 30 秒随机值(8 字节)
+* Hash = HMAC(H, K, M)
\ No newline at end of file