diff --git a/src/popup/services/services.module.ts b/src/popup/services/services.module.ts
index bdab984ada..a41236151c 100644
--- a/src/popup/services/services.module.ts
+++ b/src/popup/services/services.module.ts
@@ -181,7 +181,7 @@ export function initFactory(platformUtilsService: PlatformUtilsService, i18nServ
         },
         {
             provide: LOCALE_ID,
-            useFactory: () => getBgService<I18nService>('i18nService')().translationLocale,
+            useFactory: () => isPrivateMode ? null : getBgService<I18nService>('i18nService')().translationLocale,
             deps: [],
         },
         { provide: PasswordRepromptServiceAbstraction, useValue: passwordRepromptService },