diff --git a/include/maskfld.cpp b/include/maskfld.cpp
index c0817a9e7..5220a2e95 100755
--- a/include/maskfld.cpp
+++ b/include/maskfld.cpp
@@ -1317,7 +1317,7 @@ bool TBrowse::parse_copy(const TString& what, const TBrowse& b)
   {
     _out_id = b._out_id;
     _out_fn = b._out_fn;
-    _secondary = TRUE;
+    _secondary = b.field().has_check();
   }
   return TRUE;
 }