diff --git a/functions/i18n.php b/functions/i18n.php
index 04cee52..f93fbbb 100644
--- a/functions/i18n.php
+++ b/functions/i18n.php
@@ -1,12 +1,12 @@
 <?php
 
-function loadLocale($lang = 'en_US') {
+function loadLocale($lang = 'en-us') {
     $file = __DIR__ . '/../locale/' . $lang . '/messages.php';
     if (file_exists($file)) {
         return require $file;
     } else {
         // Fallback to English if the specified language file does not exist
-        return  require __DIR__ . '/../locale/en_US/messages.php';
+        return  require __DIR__ . '/../locale/en-us/messages.php';
     }
 
 
diff --git a/locale/af_ZA/messages.php b/locale/af-ZA/messages.php
similarity index 100%
rename from locale/af_ZA/messages.php
rename to locale/af-ZA/messages.php
diff --git a/locale/ar_SA/messages.php b/locale/ar-SA/messages.php
similarity index 100%
rename from locale/ar_SA/messages.php
rename to locale/ar-SA/messages.php
diff --git a/locale/ca_ES/messages.php b/locale/ca-ES/messages.php
similarity index 100%
rename from locale/ca_ES/messages.php
rename to locale/ca-ES/messages.php
diff --git a/locale/cs_CZ/messages.php b/locale/cs-CZ/messages.php
similarity index 100%
rename from locale/cs_CZ/messages.php
rename to locale/cs-CZ/messages.php
diff --git a/locale/da_DK/messages.php b/locale/da-DK/messages.php
similarity index 100%
rename from locale/da_DK/messages.php
rename to locale/da-DK/messages.php
diff --git a/locale/de_DE/messages.php b/locale/de-DE/messages.php
similarity index 100%
rename from locale/de_DE/messages.php
rename to locale/de-DE/messages.php
diff --git a/locale/el_GR/messages.php b/locale/el-GR/messages.php
similarity index 100%
rename from locale/el_GR/messages.php
rename to locale/el-GR/messages.php
diff --git a/locale/en_US/messages.php b/locale/en-US/messages.php
similarity index 100%
rename from locale/en_US/messages.php
rename to locale/en-US/messages.php
diff --git a/locale/es_ES/messages.php b/locale/es-ES/messages.php
similarity index 100%
rename from locale/es_ES/messages.php
rename to locale/es-ES/messages.php
diff --git a/locale/fi_FI/messages.php b/locale/fi-FI/messages.php
similarity index 100%
rename from locale/fi_FI/messages.php
rename to locale/fi-FI/messages.php
diff --git a/locale/fil_PH/messages.php b/locale/fil-PH/messages.php
similarity index 100%
rename from locale/fil_PH/messages.php
rename to locale/fil-PH/messages.php
diff --git a/locale/fr_FR/messages.php b/locale/fr-FR/messages.php
similarity index 100%
rename from locale/fr_FR/messages.php
rename to locale/fr-FR/messages.php
diff --git a/locale/he_IL/messages.php b/locale/he-IL/messages.php
similarity index 100%
rename from locale/he_IL/messages.php
rename to locale/he-IL/messages.php
diff --git a/locale/hu_HU/messages.php b/locale/hu-HU/messages.php
similarity index 100%
rename from locale/hu_HU/messages.php
rename to locale/hu-HU/messages.php
diff --git a/locale/it_IT/messages.php b/locale/it-IT/messages.php
similarity index 100%
rename from locale/it_IT/messages.php
rename to locale/it-IT/messages.php
diff --git a/locale/ja_JP/messages.php b/locale/ja-JP/messages.php
similarity index 100%
rename from locale/ja_JP/messages.php
rename to locale/ja-JP/messages.php
diff --git a/locale/ko_KR/messages.php b/locale/ko-KR/messages.php
similarity index 100%
rename from locale/ko_KR/messages.php
rename to locale/ko-KR/messages.php
diff --git a/locale/nl_NL/messages.php b/locale/nl-NL/messages.php
similarity index 100%
rename from locale/nl_NL/messages.php
rename to locale/nl-NL/messages.php
diff --git a/locale/no_NO/messages.php b/locale/no-NO/messages.php
similarity index 100%
rename from locale/no_NO/messages.php
rename to locale/no-NO/messages.php
diff --git a/locale/pl_PL/messages.php b/locale/pl-PL/messages.php
similarity index 100%
rename from locale/pl_PL/messages.php
rename to locale/pl-PL/messages.php
diff --git a/locale/pt_BR/messages.php b/locale/pt-BR/messages.php
similarity index 100%
rename from locale/pt_BR/messages.php
rename to locale/pt-BR/messages.php
diff --git a/locale/pt_PT/messages.php b/locale/pt-PT/messages.php
similarity index 100%
rename from locale/pt_PT/messages.php
rename to locale/pt-PT/messages.php
diff --git a/locale/ro_RO/messages.php b/locale/ro-RO/messages.php
similarity index 100%
rename from locale/ro_RO/messages.php
rename to locale/ro-RO/messages.php
diff --git a/locale/ru_RU/messages.php b/locale/ru-RU/messages.php
similarity index 100%
rename from locale/ru_RU/messages.php
rename to locale/ru-RU/messages.php
diff --git a/locale/sr_SP/messages.php b/locale/sr-SP/messages.php
similarity index 100%
rename from locale/sr_SP/messages.php
rename to locale/sr-SP/messages.php
diff --git a/locale/sv_SE/messages.php b/locale/sv-SE/messages.php
similarity index 100%
rename from locale/sv_SE/messages.php
rename to locale/sv-SE/messages.php
diff --git a/locale/tr_TR/messages.php b/locale/tr-TR/messages.php
similarity index 100%
rename from locale/tr_TR/messages.php
rename to locale/tr-TR/messages.php
diff --git a/locale/uk_UA/messages.php b/locale/uk-UA/messages.php
similarity index 100%
rename from locale/uk_UA/messages.php
rename to locale/uk-UA/messages.php
diff --git a/locale/vi_VN/messages.php b/locale/vi-VN/messages.php
similarity index 100%
rename from locale/vi_VN/messages.php
rename to locale/vi-VN/messages.php
diff --git a/locale/zh_CN/messages.php b/locale/zh-CN/messages.php
similarity index 100%
rename from locale/zh_CN/messages.php
rename to locale/zh-CN/messages.php
diff --git a/locale/zh_TW/messages.php b/locale/zh-TW/messages.php
similarity index 100%
rename from locale/zh_TW/messages.php
rename to locale/zh-TW/messages.php