diff --git a/server/models/chat/message.ts b/server/models/chat/message.ts
index 45b7fd73..54afd70e 100644
--- a/server/models/chat/message.ts
+++ b/server/models/chat/message.ts
@@ -48,7 +48,7 @@ export class Message extends TimeStamps implements Base {
    * 会话ID 必填
    * 私信的本质就是创建一个双人的会话
    */
-  @prop({ ref: () => Converse })
+  @prop({ ref: () => Converse, index: true })
   converseId!: Ref<Converse>;
 
   @prop({ type: () => MessageReaction })
diff --git a/server/services/core/chat/message.service.ts b/server/services/core/chat/message.service.ts
index cfd88952..43aab794 100644
--- a/server/services/core/chat/message.service.ts
+++ b/server/services/core/chat/message.service.ts
@@ -143,7 +143,7 @@ class MessageService extends TcService {
       converseId: String(converseId),
       messageId: String(message._id),
       content,
-      meta,
+      meta: meta ?? {},
     });
 
     return json;
@@ -209,7 +209,7 @@ class MessageService extends TcService {
       groupId: String(groupId),
       converseId: String(converseId),
       messageId: String(message._id),
-      meta: message.meta,
+      meta: message.meta ?? {},
     });
 
     return json;
@@ -249,7 +249,7 @@ class MessageService extends TcService {
       groupId: String(groupId),
       converseId: String(converseId),
       messageId: String(message._id),
-      meta: message.meta,
+      meta: message.meta ?? {},
     });
 
     return true;