diff --git a/dune/solvers/common/staticmatrixtools.hh b/dune/solvers/common/staticmatrixtools.hh
index c6728a65bbb931dda7f18e7aaca462686d4b6385..3eb1aff2e24cf917ed5ad841bb58ee97da4888f0 100644
--- a/dune/solvers/common/staticmatrixtools.hh
+++ b/dune/solvers/common/staticmatrixtools.hh
@@ -95,13 +95,13 @@ class StaticMatrix
 //        }
 
         template <typename FieldType, int n, class MatrixB>
-        static void axpy(Dune::ScaledIdentityMatrix<FieldType,n>& x, const Dune::ScaledIdentityMatrix<FieldType,n>::field_type a, const MatrixB& y)
+        static void axpy(Dune::ScaledIdentityMatrix<FieldType,n>& x, const typename Dune::ScaledIdentityMatrix<FieldType,n>::field_type a, const MatrixB& y)
         {
             x.scalar() += a * y[0][0];
         }
 
         template <typename FieldType, int n, class MatrixB>
-        static void axpy(Dune::DiagonalMatrix<FieldType,n>& x, const Dune::DiagonalMatrix<FieldType,n>::field_type a, const MatrixB& y)
+        static void axpy(Dune::DiagonalMatrix<FieldType,n>& x, const typename Dune::DiagonalMatrix<FieldType,n>::field_type a, const MatrixB& y)
         {
             for(int i=0; i<n; ++i)
                 x.diagonal()[i] += a * y[i][i];