diff --git a/src/components/App/app.tsx b/src/components/App/app.tsx
index 3d3ae02..3c1b2ec 100644
--- a/src/components/App/app.tsx
+++ b/src/components/App/app.tsx
@@ -13,6 +13,7 @@ import {
     CardErrorBoundary,
     fetchConfigParameter,
     fetchConfigParameters,
+    getComputedLanguage,
     NotificationsUrlKeys,
     useNotificationsListener,
     useSnackMessage,
@@ -21,7 +22,6 @@ import { selectComputedLanguage, selectLanguage, selectTheme } from '../../redux
 import { AppState } from '../../redux/reducer';
 import { ConfigParameters } from '../../services';
 import { APP_NAME, COMMON_APP_NAME, PARAM_LANGUAGE, PARAM_THEME } from '../../utils/config-params';
-import { getComputedLanguage } from '../../utils/language';
 import AppTopBar from './app-top-bar';
 import { useDebugRender } from '../../utils/hooks';
 import { AppDispatch } from '../../redux/store';
diff --git a/src/redux/local-storage.ts b/src/redux/local-storage.ts
index af0574b..535bb03 100644
--- a/src/redux/local-storage.ts
+++ b/src/redux/local-storage.ts
@@ -5,8 +5,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-import { DARK_THEME, GsLang, GsTheme, LANG_SYSTEM } from '@gridsuite/commons-ui';
-import { getComputedLanguage } from '../utils/language';
+import { DARK_THEME, getComputedLanguage, GsLang, GsTheme, LANG_SYSTEM } from '@gridsuite/commons-ui';
 import { APP_NAME } from '../utils/config-params';
 
 const LOCAL_STORAGE_THEME_KEY = (APP_NAME + '_THEME').toUpperCase();
diff --git a/src/utils/language.ts b/src/utils/language.ts
deleted file mode 100644
index cb9f52a..0000000
--- a/src/utils/language.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 2021, RTE (http://www.rte-france.com)
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-import { GsLang, GsLangUser, LANG_ENGLISH, LANG_FRENCH, LANG_SYSTEM } from '@gridsuite/commons-ui';
-
-const supportedLanguages: string[] = [LANG_FRENCH, LANG_ENGLISH];
-
-export function getSystemLanguage(): GsLangUser {
-    const systemLanguage = navigator.language.split(/[-_]/)[0];
-    return supportedLanguages.includes(systemLanguage) ? (systemLanguage as GsLangUser) : LANG_ENGLISH;
-}
-
-export function getComputedLanguage(language: GsLang): GsLangUser {
-    return language === LANG_SYSTEM ? getSystemLanguage() : language;
-}