diff --git a/extension/src/popup/components/settings.ts b/extension/src/popup/components/settings.ts
index efcbd44..9c5a2d9 100644
--- a/extension/src/popup/components/settings.ts
+++ b/extension/src/popup/components/settings.ts
@@ -167,7 +167,8 @@ async function renderAutofillSection(content: HTMLElement): Promise<void> {
 
   content.querySelectorAll<HTMLButtonElement>('.remove-bl').forEach((btn) => {
     btn.addEventListener('click', async () => {
-      const host = btn.dataset.hostname!;
+      const host = btn.dataset.hostname;
+      if (!host) return;
       await sendMessage({ type: 'remove_blacklist', hostname: host });
       renderAutofillSection(content);
     });