diff --git a/kernel/model/assets.go b/kernel/model/assets.go
index 28e17a50f..9dbc95741 100644
--- a/kernel/model/assets.go
+++ b/kernel/model/assets.go
@@ -140,7 +140,9 @@ func NetImg2LocalAssets(rootID, originalURL string) (err error) {
 				}
 				util.PushUpdateMsg(msgId, fmt.Sprintf(Conf.Language(119), u), 15000)
 				request := httpclient.NewBrowserRequest()
-				request.SetHeader("Referer", originalURL) // 改进浏览器剪藏扩展转换本地图片成功率 https://github.com/siyuan-note/siyuan/issues/7464
+				if "" != originalURL {
+					request.SetHeader("Referer", originalURL) // 改进浏览器剪藏扩展转换本地图片成功率 https://github.com/siyuan-note/siyuan/issues/7464
+				}
 				resp, reqErr := request.Get(u)
 				if nil != reqErr {
 					logging.LogErrorf("download net img [%s] failed: %s", u, reqErr)