diff --git a/ui/src/utils.ts b/ui/src/utils.ts
index 6c22e25b4..0aec7624b 100644
--- a/ui/src/utils.ts
+++ b/ui/src/utils.ts
@@ -8,6 +8,7 @@ import 'moment/locale/ru';
 import 'moment/locale/nl';
 import 'moment/locale/it';
 import 'moment/locale/fi';
+import 'moment/locale/ca';
 
 import {
   UserOperation,
@@ -252,6 +253,7 @@ export function debounce(
 }
 
 export const languages = [
+  { code: 'ca', name: 'Català' },
   { code: 'en', name: 'English' },
   { code: 'eo', name: 'Esperanto' },
   { code: 'es', name: 'Español' },
@@ -302,6 +304,8 @@ export function getMomentLanguage(): string {
     lang = 'it';
   } else if (lang.startsWith('fi')) {
     lang = 'fi';
+  } else if (lang.startsWith('ca')) {
+    lang = 'ca';
   } else {
     lang = 'en';
   }