diff --git a/include/boost/graph/howard_cycle_ratio.hpp b/include/boost/graph/howard_cycle_ratio.hpp
index 00912d5c5..2ad0e2f3d 100644
--- a/include/boost/graph/howard_cycle_ratio.hpp
+++ b/include/boost/graph/howard_cycle_ratio.hpp
@@ -141,11 +141,9 @@ namespace detail
          * Constructor
          * \param g = (V, E) - a directed multigraph.
          * \param vim  Vertex Index Map. Read property Map: V -> [0,
-         * num_vertices(g)). \param ewm  edge weight map. Read property map: E
-         * -> R \param ew2m  edge weight map. Read property map: E -> R+ \param
-         * infty A big enough value to guaranty that there exist a cycle with
-         *  better ratio.
-         * \param cmp The compare operator for float_ts.
+         *  num_vertices(g)).
+         * \param ewm  edge weight map. Read property map: E -> R
+         * \param ew2m  edge weight map. Read property map: E -> R+
          */
         mcr_howard(const Graph& g, VertexIndexMap vim, EdgeWeight1 ewm,
             EdgeWeight2 ew2m)
diff --git a/include/boost/graph/visitors.hpp b/include/boost/graph/visitors.hpp
index d98262bcc..dffac8526 100644
--- a/include/boost/graph/visitors.hpp
+++ b/include/boost/graph/visitors.hpp
@@ -395,9 +395,11 @@ template < typename PropertyMap, typename EventTag > struct property_put
  * Creates a property_put functor which just sets a given value to a vertex or
  * edge.
  *
+ * The third argument is an unnamed event filter tag, used only to select the
+ * event the returned functor responds to.
+ *
  * @param property_map Given writeable property map
  * @param value Fixed value of the map
- * @param tag Event Filter
  * @return The functor.
  */