diff --git a/tests/operator_oswald.cc b/tests/operator_oswald.cc
index bd6c84c2ba1fed85d36608178fb793aa66554513..44b18e6f883d45707b91d01738a8961483cf2b33 100644
--- a/tests/operator_oswald.cc
+++ b/tests/operator_oswald.cc
@@ -86,10 +86,10 @@ struct Oswald_Interpolation_Operator : public ::testing::Test
 typedef Dune::ALUGrid<2, 2, Dune::simplex, Dune::conforming> AluConform2dGridType;
 typedef
     typename Dune::GDT::SpaceTools::LeafGridPartView<AluConform2dGridType, false>::Type AluConform2dLeafGridPartType;
-// typedef Dune::ALUSimplexGrid< 2, 2 > AluSimplex2dGridType;
+// typedef Dune::ALUGrid< 2, 2, Dune::simplex, Dune::nonconforming > AluSimplex2dGridType;
 // typedef typename Dune::GDT::SpaceTools::LeafGridPartView< AluSimplex2dGridType, false >::Type
 // AluSimplex2dLeafGridPartType;
-// typedef Dune::ALUSimplexGrid< 3, 3 > AluSimplex3dGridType;
+// typedef Dune::ALUGrid< 3, 3, Dune::simplex, Dune::nonconforming > AluSimplex3dGridType;
 // typedef typename Dune::GDT::SpaceTools::LeafGridPartView< AluSimplex3dGridType, false >::Type
 // AluSimplex3dLeafGridPartType;