diff --git a/server/websocket/internal/logic/datatransferlogic.go b/server/websocket/internal/logic/datatransferlogic.go
index 553f4123..9c2de077 100644
--- a/server/websocket/internal/logic/datatransferlogic.go
+++ b/server/websocket/internal/logic/datatransferlogic.go
@@ -87,9 +87,9 @@ func (l *DataTransferLogic) DataTransfer(w http.ResponseWriter, r *http.Request)
 	//有token是正常用户，无则是白板用户，也可以连接
 	if token != "" {
 		r.Header.Set("Authorization", "Bearer "+token)
+		//设置Sec-Websocket-Protocol
+		upgrader.Subprotocols = []string{token}
 	}
-	//设置Sec-Websocket-Protocol
-	upgrader.Subprotocols = []string{token}
 	//升级websocket
 	conn, err := upgrader.Upgrade(w, r, nil)
 	if err != nil {