diff --git a/internal/api/conversation/conversation.go b/internal/api/conversation/conversation.go
index c1e42daf8..810e157db 100644
--- a/internal/api/conversation/conversation.go
+++ b/internal/api/conversation/conversation.go
@@ -15,7 +15,7 @@ import (
 
 type paramsSetReceiveMessageOpt struct {
 	OperationID        string   `json:"operationID" binding:"required"`
-	Option             int32    `json:"option" binding:"required"`
+	Option             int32    `json:"option"`
 	ConversationIdList []string `json:"conversationIdList" binding:"required"`
 }