diff --git a/internal/site/usecase/site_ucase.go b/internal/site/usecase/site_ucase.go
index 741de4a..0946e60 100644
--- a/internal/site/usecase/site_ucase.go
+++ b/internal/site/usecase/site_ucase.go
@@ -27,7 +27,11 @@ func (ucase *siteUseCase) Do(ctx context.Context, lang domain.Language) (*domain
 		return nil, fmt.Errorf("cannot find base site data: %w", err)
 	}
 
-	out.Resources, _, _ = ucase.statics.Fetch(ctx, "")
+	if out.Resources, _, err = ucase.statics.Fetch(ctx, ""); err == nil {
+		for _, res := range out.Resources.Match("index.*.md") {
+			out.Languages = append(out.Languages, res.File.Language)
+		}
+	}
 
 	sub, err := ucase.sites.Get(ctx, lang)
 	if err != nil {