diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Highway.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Highway.kt
index c75f8a867..810a79f82 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Highway.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Highway.kt
@@ -141,7 +141,7 @@ class CSDataHighwayHead : ProtoBuf {
     @Serializable
     class DataHighwayHead(
         @SerialId(1) val version: Int = 0,
-        @SerialId(2) val uin: String = "",
+        @SerialId(2) val uin: String = "", // yes
         @SerialId(3) val command: String = "",
         @SerialId(4) val seq: Int = 0,
         @SerialId(5) val retryTimes: Int = 0,