diff --git a/client/group_info.go b/client/group_info.go
index 761ebf62..eac6a534 100644
--- a/client/group_info.go
+++ b/client/group_info.go
@@ -24,10 +24,12 @@ type (
 		MemberCount    uint16
 		MaxMemberCount uint16
 		Members        []*GroupMemberInfo
+		// 最后一条信息的SEQ,只有通过 GetGroupInfo 函数获取的 GroupInfo 才会有
+		LastMsgSeq int64
 
-		client     *QQClient
-		lastMsgSeq int64
-		lock       sync.RWMutex
+		client *QQClient
+
+		lock sync.RWMutex
 	}
 
 	GroupMemberInfo struct {
@@ -183,7 +185,7 @@ func decodeGroupInfoResponse(c *QQClient, _ uint16, payload []byte) (interface{}
 		MemberCount:    uint16(*info.GroupInfo.GroupMemberNum),
 		MaxMemberCount: uint16(*info.GroupInfo.GroupMemberMaxNum),
 		Members:        []*GroupMemberInfo{},
-		lastMsgSeq:     int64(info.GroupInfo.GetGroupCurMsgSeq()),
+		LastMsgSeq:     int64(info.GroupInfo.GetGroupCurMsgSeq()),
 		client:         c,
 	}, nil
 }
diff --git a/client/group_msg.go b/client/group_msg.go
index 9dc3b83f..e55c4403 100644
--- a/client/group_msg.go
+++ b/client/group_msg.go
@@ -142,7 +142,7 @@ func (c *QQClient) sendGroupMessage(groupCode int64, forward bool, m *message.Se
 		return ret
 	case <-time.After(time.Second * 5):
 		if g, err := c.GetGroupInfo(groupCode); err == nil {
-			if history, err := c.GetGroupMessages(groupCode, g.lastMsgSeq-10, g.lastMsgSeq+1); err == nil {
+			if history, err := c.GetGroupMessages(groupCode, g.LastMsgSeq-10, g.LastMsgSeq+1); err == nil {
 				for _, m := range history {
 					if m.InternalId == mr {
 						return m