diff --git a/dune/vtkgridfunction.hh b/dune/vtkgridfunction.hh
index d1cd5d25d5de1be24e9ddf8bfa03b6a03648090e..85b9106c29b2781fa8758b5c88cb38c77723cf02 100644
--- a/dune/vtkgridfunction.hh
+++ b/dune/vtkgridfunction.hh
@@ -32,7 +32,7 @@ class VTKBasisGridFunction
    */
   VTKBasisGridFunction(const Basis& basis, const CoefficientType& v,
                        const std::string& s)
-      : basis_(basis), coeffs_(v), s(s_) {
+      : basis_(basis), coeffs_(v), s_(s) {
     if (v.size() != basis_.size())
       DUNE_THROW(
           IOError,