diff --git a/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.h b/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.h
index 7864459..1b7d5e8 100644
--- a/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.h
+++ b/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.h
@@ -46,10 +46,10 @@
    */
   Attr (Buffer::Iterator &start, uint32_t length);
   
-  virtual void accept( Visitor &v )                           { v.visit( *this ); }
-  virtual void accept( GJVoidVisitor &v, boost::any param )   { v.visit( *this, param ); }
-  virtual boost::any accept( GJNoArguVisitor &v )             { return v.visit( *this ); }
-  virtual boost::any accept( GJVisitor &v, boost::any param ) { return v.visit( *this, param ); }
+  virtual void accept( VoidNoArguVisitor &v )               { v.visit( *this ); }
+  virtual void accept( VoidVisitor &v, boost::any param )   { v.visit( *this, param ); }
+  virtual boost::any accept( NoArguVisitor &v )             { return v.visit( *this ); }
+  virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
 
   std::string m_attr; ///< field holding name of the attribute
 };