diff --git a/dune/common/densematrix.hh b/dune/common/densematrix.hh
index f1ede4374f03b64134326f821eaa08c90fdf1781..53229b876c33eee50c48b8c98d9d85f4727b2fae 100644
--- a/dune/common/densematrix.hh
+++ b/dune/common/densematrix.hh
@@ -61,6 +61,7 @@ namespace Dune
 
   /**
      \brief you have to specialize this function for any type T that should be assignable to a DenseMatrix
+     \tparam M Type of the matrix implementation class implementing the dense matrix
    */
   template<typename M, typename T>
   void istl_assign_to_fmatrix(DenseMatrix<M>& f, const T& t)