diff --git a/lemon/lgf_writer.h b/lemon/lgf_writer.h
--- a/lemon/lgf_writer.h
+++ b/lemon/lgf_writer.h
@@ -237,7 +237,7 @@
   public:
 
     typedef _Digraph Digraph;
-    GRAPH_TYPEDEFS(typename Digraph);
+    DIGRAPH_TYPEDEFS(typename Digraph);
     
   private: