diff --git a/frontend/src/i18n/index.ts b/frontend/src/i18n/index.ts
index b2f8a37a5..11144aa26 100644
--- a/frontend/src/i18n/index.ts
+++ b/frontend/src/i18n/index.ts
@@ -76,7 +76,7 @@ export const i18n = createI18n({
 
 export async function setLanguage(lang: SupportedLocale): Promise<SupportedLocale | undefined> {
 	if (!lang) {
-		throw new Error()
+		throw new Error('language is empty')
 	}
 
 	// do not change language to the current one