diff --git a/packages/backend/src/server/web/boot.js b/packages/backend/src/server/web/boot.js
index ecce9d04d..53010740d 100644
--- a/packages/backend/src/server/web/boot.js
+++ b/packages/backend/src/server/web/boot.js
@@ -38,7 +38,7 @@
 		let id = localStorage.getItem('id');
 
 	//#region Detect language & fetch translations
-	if (!localStorage.hasOwn('locale')) {
+	if (!localStorage.hasOwnProperty('locale')) {
 		const supportedLangs = LANGS;
 		let lang = localStorage.getItem('lang');
 		if (lang == null || !supportedLangs.includes(lang)) {