diff --git a/mirai-core/src/commonMain/kotlin/message/imagesImpl.kt b/mirai-core/src/commonMain/kotlin/message/imagesImpl.kt
index 75a0d1814..19d46175d 100644
--- a/mirai-core/src/commonMain/kotlin/message/imagesImpl.kt
+++ b/mirai-core/src/commonMain/kotlin/message/imagesImpl.kt
@@ -184,7 +184,8 @@ internal fun OfflineGroupImage.toJceData(): ImMsgBody.CustomFace {
         //_400Height = 235,
         //_400Url = "/gchatpic_new/1040400290/1041235568-2195821338-01E9451B70EDEAE3B37C101F1EEBF5B5/400?term=2",
         //_400Width = 351,
-        oldData = oldData
+        oldData = oldData,
+      //  pbReserve = CustomFaceExtPb.ResvAttr().toByteArray(CustomFaceExtPb.ResvAttr.serializer())
     )
 }
 
diff --git a/mirai-core/src/commonMain/kotlin/network/protocol/data/proto/HummerResv3.kt b/mirai-core/src/commonMain/kotlin/network/protocol/data/proto/HummerResv3.kt
new file mode 100644
index 000000000..5d1be4c60
--- /dev/null
+++ b/mirai-core/src/commonMain/kotlin/network/protocol/data/proto/HummerResv3.kt
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2019-2021 Mamoe Technologies and contributors.
+ *
+ *  此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ *  Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ *  https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+@file:Suppress("unused", "SpellCheckingInspection")
+
+package net.mamoe.mirai.internal.network.protocol.data.proto
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+import net.mamoe.mirai.internal.network.protocol.packet.EMPTY_BYTE_ARRAY
+import net.mamoe.mirai.internal.utils.io.ProtoBuf
+
+/**
+ * v8.5.5
+ */
+@Serializable
+internal class CustomFaceExtPb : ProtoBuf {
+    @Serializable
+    internal class AnimationImageShow(
+        @JvmField @ProtoNumber(1) val int32EffectId: Int = 0,
+        @JvmField @ProtoNumber(2) val animationParam: ByteArray = EMPTY_BYTE_ARRAY
+    ) : ProtoBuf
+
+    @Serializable
+    internal class ResvAttr(
+        @JvmField @ProtoNumber(1) val imageBizType: Int = 0,
+        @JvmField @ProtoNumber(2) val customfaceType: Int = 0,
+        @JvmField @ProtoNumber(3) val emojiPackageid: Int = 0,
+        @JvmField @ProtoNumber(4) val emojiId: Int = 0,
+        @JvmField @ProtoNumber(5) val text: String = "",
+        @JvmField @ProtoNumber(6) val doutuSuppliers: String = "",
+        @JvmField @ProtoNumber(7) val msgImageShow: AnimationImageShow? = null,
+        @JvmField @ProtoNumber(9) val textSummary: ByteArray = EMPTY_BYTE_ARRAY,
+        @JvmField @ProtoNumber(10) val emojiFrom: Int = 0,
+        @JvmField @ProtoNumber(11) val emojiSource: String = "",
+        @JvmField @ProtoNumber(12) val emojiWebUrl: String = "",
+        @JvmField @ProtoNumber(13) val emojiIconUrl: String = "",
+        @JvmField @ProtoNumber(14) val emojiMarketFaceName: String = "",
+        @JvmField @ProtoNumber(15) val source: Int = 0,
+        @JvmField @ProtoNumber(16) val cameraCaptureTemplateinfo: String = "",
+        @JvmField @ProtoNumber(17) val cameraCaptureMaterialname: String = "",
+        @JvmField @ProtoNumber(18) val adEmoJumpUrl: String = "",
+        @JvmField @ProtoNumber(19) val adEmoDescStr: String = ""
+    ) : ProtoBuf
+}
+        
\ No newline at end of file