diff --git a/include/boost/graph/filtered_graph.hpp b/include/boost/graph/filtered_graph.hpp
index 538536d7..4c5f1783 100644
--- a/include/boost/graph/filtered_graph.hpp
+++ b/include/boost/graph/filtered_graph.hpp
@@ -221,14 +221,14 @@ namespace boost {
   template <typename Graph, 
             typename EdgePredicate,
             typename VertexPredicate>
-  class vertex_property_type<filtered_graph<Graph, EdgePredicate, VertexPredicate> > {
+  struct vertex_property_type<filtered_graph<Graph, EdgePredicate, VertexPredicate> > {
     typedef typename vertex_property_type<Graph>::type type;
   };
 
   template <typename Graph, 
             typename EdgePredicate,
             typename VertexPredicate>
-  class edge_property_type<filtered_graph<Graph, EdgePredicate, VertexPredicate> > {
+  struct edge_property_type<filtered_graph<Graph, EdgePredicate, VertexPredicate> > {
     typedef typename edge_property_type<Graph>::type type;
   };