diff --git a/server/data/Chat.ts b/server/data/Chat.ts
index 2b32181..7a9a2d9 100644
--- a/server/data/Chat.ts
+++ b/server/data/Chat.ts
@@ -231,7 +231,10 @@ export default class Chat {
         if (this.bean.type == 'group') return this.bean.avatar_file_hash
         if (this.bean.type == 'private') return this.getAnotherUserForPrivate(userMySelf as User)?.getAvatarFileHash()
     }
+    setAvatarFileHash(hash: string) {
+        this.setAttr("avatar_file_hash", hash)
+    }
     async setAvatar(avatar: Buffer) {
-        this.setAttr("avatar_file_hash", (await FileManager.uploadFile(`avatar_chat_${this.bean.count}`, avatar)).getHash())
+        this.setAvatarFileHash((await FileManager.uploadFile(`avatar_chat_${this.bean.count}`, avatar)).getHash())
     }
 }
diff --git a/server/data/User.ts b/server/data/User.ts
index 008e064..aa3b33e 100644
--- a/server/data/User.ts
+++ b/server/data/User.ts
@@ -167,7 +167,10 @@ export default class User {
     getAvatarFileHash() {
         return this.bean.avatar_file_hash
     }
+    setAvatarFileHash(hash: string) {
+        this.setAttr("avatar_file_hash", hash)
+    }
     async setAvatar(avatar: Buffer) {
-        this.setAttr("avatar_file_hash", (await FileManager.uploadFile(`avatar_user_${this.bean.count}`, avatar)).getHash())
+        this.setAvatarFileHash((await FileManager.uploadFile(`avatar_user_${this.bean.count}`, avatar)).getHash())
     }
 }