diff --git a/public/app/core/internationalization/constants.ts b/public/app/core/internationalization/constants.ts
index b367bb57a44..60b8b34d200 100644
--- a/public/app/core/internationalization/constants.ts
+++ b/public/app/core/internationalization/constants.ts
@@ -4,7 +4,7 @@ export const ENGLISH_US = 'en-US';
 export const FRENCH_FRANCE = 'fr-FR';
 export const SPANISH_SPAIN = 'es-ES';
 export const GERMAN_GERMANY = 'de-DE';
-export const BRAZILIAN_PORTUGUESE = 'pt-br';
+export const BRAZILIAN_PORTUGUESE = 'pt-BR';
 export const CHINESE_SIMPLIFIED = 'zh-Hans';
 export const PSEUDO_LOCALE = 'pseudo-LOCALE';