diff --git a/apps/client/src/widgets/view_widgets/calendar_view.ts b/apps/client/src/widgets/view_widgets/calendar_view.ts
index febac6f4d..8da330ed8 100644
--- a/apps/client/src/widgets/view_widgets/calendar_view.ts
+++ b/apps/client/src/widgets/view_widgets/calendar_view.ts
@@ -676,7 +676,7 @@ export async function getFullCalendarLocale(locale: string) {
             return (await import("@fullcalendar/core/locales/ru")).default;
         case "ja":
             return (await import("@fullcalendar/core/locales/ja")).default;
-        case "pt_BR":
+        case "pt_br":
             return (await import("@fullcalendar/core/locales/pt-br")).default;
         case "uk":
             return (await import("@fullcalendar/core/locales/uk")).default;