diff --git a/src/ui/options.js b/src/ui/options.js
index 1a16e291..e3fff567 100644
--- a/src/ui/options.js
+++ b/src/ui/options.js
@@ -76,7 +76,7 @@
       if (f) f.remove();
       f = document.createElement("iframe");
       f.id = id;
-      f.srcdoc = `<a download="noscript_data.txt" target="_blank">NoScript Export</a>`;
+      f.srcdoc = `<a download="noscript_data.json" target="_blank">NoScript Export</a>`;
       f.style.position = "fixed";
       f.style.top = "-999px";
       f.style.height = "1px";