diff --git a/src/ts/browser-action.ts b/src/ts/browser-action.ts
index 09e1ad8..b051823 100644
--- a/src/ts/browser-action.ts
+++ b/src/ts/browser-action.ts
@@ -9,7 +9,7 @@ const MAIN_TEMPLATE: twig.Template = twig.twig({href: MAIN_TEMPLATE_URI, async:
 document.addEventListener("DOMContentLoaded", () => {
 	tabs.getWindows((windows: chrome.windows.Window[]) => {
 		document.querySelector("body").innerHTML = String(MAIN_TEMPLATE.render({windows}));
-		registerTabClickListeners;
+		registerTabClickListeners();
 	});
 });