diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h
new file mode 100644
index 0000000..59b59d7
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+
+#include "void-no-argu-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Depth-first visitor that takes no arguments and returns nothing
+ */
+class VoidNoArguDepthFirstVisitor : public VoidNoArguVisitor
+{
+public:
+  virtual void visit (Blob& );
+  virtual void visit (Udata&);
+  virtual void visit (Tag&  );
+  virtual void visit (Attr& );
+  virtual void visit (Dtag& );
+  virtual void visit (Dattr&);
+  virtual void visit (Ext&  );
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_