diff --git a/libs/ardour/ardour/graph.h b/libs/ardour/ardour/graph.h
index 0fa5b2f6c8..18a8c7a4c9 100644
--- a/libs/ardour/ardour/graph.h
+++ b/libs/ardour/ardour/graph.h
@@ -48,7 +48,6 @@ class Route;
 class Session;
 
 typedef boost::shared_ptr<GraphNode> node_ptr_t;
-typedef boost::shared_ptr<Graph> graph_ptr_t;
 
 typedef std::list< node_ptr_t > node_list_t;
 typedef std::set< node_ptr_t > node_set_t;
diff --git a/libs/ardour/graphnode.cc b/libs/ardour/graphnode.cc
index 8a2deed808..a919efcff3 100644
--- a/libs/ardour/graphnode.cc
+++ b/libs/ardour/graphnode.cc
@@ -24,7 +24,7 @@
 
 using namespace ARDOUR;
 
-GraphNode::GraphNode (graph_ptr_t graph)
+GraphNode::GraphNode (boost::shared_ptr<Graph> graph)
         : _graph(graph)
 {
 }