diff -r 677ea6c8169a -r 4cd528a30ec1 demo/topology_demo.cc
--- a/demo/topology_demo.cc	Wed Jun 28 16:27:44 2006 +0000
+++ b/demo/topology_demo.cc	Fri Jun 30 12:14:36 2006 +0000
@@ -17,6 +17,7 @@
  */
 
 #include <lemon/list_graph.h>
+#include <lemon/list_ugraph.h>
 #include <lemon/topology.h>
 #include <lemon/graph_to_eps.h>
 #include <lemon/graph_reader.h>