diff --git a/extension/background.js b/extension/background.js
index dd03c06..cc8d876 100644
--- a/extension/background.js
+++ b/extension/background.js
@@ -84,8 +84,8 @@ async function refreshOffscreenDocument() {
 chrome.runtime.onMessage.addListener(async (request, sender, sendResponse) => {
   if (request.action === 'startSniffing') {
     if (isSniffing) {
-       sendResponse({ status: 'already_started' });
-       return true;
+      sendResponse({ status: 'already_started' });
+      return true;
     }
 
     isSniffing = true;