diff --git a/options/script.js b/options/script.js
index cba5303..63d3be9 100644
--- a/options/script.js
+++ b/options/script.js
@@ -111,7 +111,9 @@ async function saveOptions(ev) {
     pymt__bic: bic,
     showChangelog: allowChangelogMessages,
   };
-  options = Object.fromEntries(Object.entries(options).filter(([k, v]) => v !== ""))
+  // list of options that may be explicitly empty
+  const EMPTYABLE_OPTIONS = ["defaultAction"];
+  options = Object.fromEntries(Object.entries(options).filter(([k, v]) => v !== "" || EMPTYABLE_OPTIONS.includes(k)))
   console.info("saving", options);
 
   browser.storage.sync.set(options).then(() => {