diff --git a/src/views/Options/Rules.js b/src/views/Options/Rules.js
index 67160ad..e08f9ce 100644
--- a/src/views/Options/Rules.js
+++ b/src/views/Options/Rules.js
@@ -554,7 +554,7 @@ function UserRules({ subRules }) {
 
         <UploadButton text={i18n("import")} onChange={handleImport} />
         <DownloadButton
-          data={JSON.stringify([...rules.list].reverse(), null, "\t")}
+          data={JSON.stringify([...rules.list].reverse(), null, 2)}
           text={i18n("export")}
         />