diff --git a/ChangeLog b/ChangeLog
index f59a70bd..7a2d2e90 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+	* src/print_graph.c (print_state): Fix.
+
 2001-08-27  Marc Autret  <autret_m@epita.fr>
 
 	* src/vcg.h (classname_s, infoname_s, node_s): Constify the 
diff --git a/src/print_graph.c b/src/print_graph.c
index c2067744..d5fc1835 100644
--- a/src/print_graph.c
+++ b/src/print_graph.c
@@ -253,7 +253,7 @@ print_state (int state)
     obstack_grow (&graph_obstack, 
 		  obstack_base (&node_obstack), 
 		  obs_size);
-    obstack_finish (&node_obstack);
+    obstack_free (&node_obstack, 0);
   }
 }