diff --git a/include/archives.cpp b/include/archives.cpp
index a6c6225da..c1d107b6b 100755
--- a/include/archives.cpp
+++ b/include/archives.cpp
@@ -388,7 +388,7 @@ bool TArchive::backup(
   TString title("Archiviazione di "); title << name;
   TProgress_win w(title, this);
   ALEntryList list(w.monitor());
-  _arc->AddWildCardFiles(list, "*.*");
+  _arc->AddWildCardFiles(list, "*.*", 1);
   
   w.open_modal();
   _arc->Create( list );