diff --git a/internal/api/third/rtc.go b/internal/api/third/rtc.go
index 8fed4c845..0e5a51375 100644
--- a/internal/api/third/rtc.go
+++ b/internal/api/third/rtc.go
@@ -48,6 +48,7 @@ func GetRTCInvitationInfo(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)
 }
 
diff --git a/pkg/base_info/third_api_struct.go b/pkg/base_info/third_api_struct.go
index b02ce9260..a13f0dc8e 100644
--- a/pkg/base_info/third_api_struct.go
+++ b/pkg/base_info/third_api_struct.go
@@ -76,6 +76,7 @@ type GetRTCInvitationInfoResp struct {
 			MediaType         string   `json:"mediaType"`
 			SessionType       int32    `json:"sessionType"`
 			InitiateTime      int32    `json:"initiateTime"`
+			PlatformID        int32    `json:"platformID"`
 		} `json:"invitation"`
 		OfflinePushInfo struct{} `json:"offlinePushInfo"`
 	} `json:"data"`