diff --git a/controllers/knowledge_upload_controller.go b/controllers/knowledge_upload_controller.go
index 9b2f86624..0efd7b09c 100644
--- a/controllers/knowledge_upload_controller.go
+++ b/controllers/knowledge_upload_controller.go
@@ -15,6 +15,8 @@ func (c *KnowUploadController) snsUploadImg() {
 	callResult := &CallResult{}
 	files := c.Ctx.Request.MultipartForm.File["userfiles"]
 	isThumb, _ := c.GetBool("isThumb")
+	callResult.Code = model.ErrCodeGeneralFailed
+	callResult.Desc = "请上传正确文件！"
 	if retVal, err := knowledge.SNSUploadImg(nil, files, isThumb); err == nil {
 		data, _ := json.Marshal(retVal)
 		callResult.Data = string(data)