diff --git a/chfs-ng/internal/api/server.go b/chfs-ng/internal/api/server.go
index 6479e09..94e5c29 100644
--- a/chfs-ng/internal/api/server.go
+++ b/chfs-ng/internal/api/server.go
@@ -175,7 +175,12 @@ func (s *Server) files(w http.ResponseWriter, r *http.Request) {
 		sub := false
 		if fi.IsDir() {
 			if xs, e := s.Store.List(fp); e == nil {
-				sub = len(xs) > 0
+				for _, child := range xs {
+					if child.IsDir() {
+						sub = true
+						break
+					}
+				}
 			}
 		}
 		out = append(out, fileInfo{Name: fi.Name(), Path: fp, Size: fi.Size(), Modified: originalTime(fi.ModTime()), Dir: fi.IsDir(), Mask: permString(a.MaskFor(fp)), GuestMask: permString(s.Auth.Guest.MaskFor(fp)), HasSubDir: sub, Icon: iconFor(fi)})