diff --git a/lib/l10n/l10n.dart b/lib/l10n/l10n.dart
index 7b7a17c..ac26f04 100644
--- a/lib/l10n/l10n.dart
+++ b/lib/l10n/l10n.dart
@@ -8,7 +8,8 @@ class AppLocalizationsDelegate extends LocalizationsDelegate<L10n> {
 
   @override
   bool isSupported(Locale locale) {
-    return ['en', 'de', 'hu', 'pl', 'fr'].contains(locale.languageCode);
+    return ['en', 'de', 'hu', 'pl', 'fr', 'cs', 'es', 'sk']
+        .contains(locale.languageCode);
   }
 
   @override