diff --git a/plays/game.go b/plays/game.go
index 43229e7..3fbfcd6 100644
--- a/plays/game.go
+++ b/plays/game.go
@@ -125,4 +125,4 @@ func (m *Game) Next(queue *[]*tea.Program) error {
 			tea.NewProgram(NewGame(m.Base, m.server, m.roomID)))
 	}
 	return nil
-}
\ No newline at end of file
+}
diff --git a/plays/lobby.go b/plays/lobby.go
index c1e7da5..a7fbec0 100644
--- a/plays/lobby.go
+++ b/plays/lobby.go
@@ -37,7 +37,7 @@ func NewLobby(base *Base) *Lobby {
 
 func (m *Lobby) fetchLobbyInfo() tea.Msg {
 	var users []models.UserStatus
-	resp, err := m.Base.client.R(). 
+	resp, err := m.Base.client.R().
 		SetResult(&users).
 		Get("/api/lobby/users")
 	if err != nil || resp.StatusCode() != http.StatusOK {
diff --git a/plays/roomWaiting.go b/plays/roomWaiting.go
index 2d3ed40..ae6a456 100644
--- a/plays/roomWaiting.go
+++ b/plays/roomWaiting.go
@@ -87,4 +87,4 @@ func (m *RoomWaiting) Next(queue *[]*tea.Program) error {
 		*queue = append(*queue, tea.NewProgram(NewLobby(m.Base)))
 	}
 	return nil
-}
\ No newline at end of file
+}
diff --git a/server/wordle/handlers.go b/server/wordle/handlers.go
index 61c4eff..21852f3 100644
--- a/server/wordle/handlers.go
+++ b/server/wordle/handlers.go
@@ -62,4 +62,4 @@ func (self *Handlers) GameFlow() {
 			}
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/types/game.go b/types/game.go
index 4194579..9fc355f 100644
--- a/types/game.go
+++ b/types/game.go
@@ -15,11 +15,11 @@ var (
 )
 
 type Room struct {
-	ID      string   `json:"id"`
-	Creater string   `json:"creater"`
+	ID      string     `json:"id"`
+	Creater string     `json:"creater"`
 	Status  RoomStatus `json:"status"`
-	Players []string `json:"players"`
-	Addr    string   `json:"-"`
+	Players []string   `json:"players"`
+	Addr    string     `json:"-"`
 }
 
 func (self Room) View() string {
diff --git a/utils/udp.go b/utils/udp.go
index 5074071..2ef7456 100644
--- a/utils/udp.go
+++ b/utils/udp.go
@@ -64,13 +64,21 @@ func ListenUDP(
 func SendPayload(endpoint, data string) error {
 	conn, err := net.Dial("udp", endpoint)
 	if err != nil {
-		return fmt.Errorf("failed to dial endpoint")
+		return fmt.Errorf("failed to dial endpoint, %w", err)
 	}
 	defer conn.Close()
 
-	_, err = conn.Write([]byte(data))
+	b, err := msgpack.Marshal(UDPPayload{
+		MagicNumber: MAGIC_NUMBER,
+		Data:        data,
+	})
 	if err != nil {
-		return fmt.Errorf("failed to send payload")
+		return fmt.Errorf("failed to marshal payload, %w", err)
+	}
+
+	_, err = conn.Write(b)
+	if err != nil {
+		return fmt.Errorf("failed to send payload, %w", err)
 	}
 
 	return nil