diff --git a/src/backend/graph.h b/src/backend/graph.h
index cbd0d340..76ac70b5 100644
--- a/src/backend/graph.h
+++ b/src/backend/graph.h
@@ -34,7 +34,7 @@
 
 namespace loot {
 
-    typedef boost::adjacency_list<boost::listS, boost::listS, boost::bidirectionalS, loot::Plugin> PluginGraph;
+    typedef boost::adjacency_list<boost::listS, boost::listS, boost::directedS, loot::Plugin> PluginGraph;
     typedef boost::graph_traits<PluginGraph>::vertex_descriptor vertex_t;
     typedef boost::graph_traits<PluginGraph>::vertex_iterator vertex_it;
     typedef boost::graph_traits<PluginGraph>::edge_descriptor edge_t;