diff --git a/internal/api/third/rtc.go b/internal/api/third/rtc.go
index 0e5a51375..3aa2c4ab2 100644
--- a/internal/api/third/rtc.go
+++ b/internal/api/third/rtc.go
@@ -88,6 +88,8 @@ func GetRTCInvitationInfoStartApp(c *gin.Context) {
 	resp.Data.Invitation.MediaType = invitationInfo.Invitation.MediaType
 	resp.Data.Invitation.Timeout = invitationInfo.Invitation.Timeout
 	resp.Data.Invitation.InitiateTime = invitationInfo.Invitation.InitiateTime
+	resp.Data.Invitation.PlatformID = invitationInfo.Invitation.PlatformID
+
 	c.JSON(http.StatusOK, resp)
 
 }