diff --git a/grid/common/virtualrefinement.cc b/grid/common/virtualrefinement.cc
index f67d993a1bf45d9153421f7d2a8c1b3383b5d89c..f7eaf5fe6202f281be8afaad09531d0a06be4fc3 100644
--- a/grid/common/virtualrefinement.cc
+++ b/grid/common/virtualrefinement.cc
@@ -535,10 +535,6 @@ namespace Dune {
           return VirtualRefinementImp<quadrilateral, CoordType, quadrilateral>::instance();
         case hypercube :
           return VirtualRefinementImp<quadrilateral, CoordType, quadrilateral>::instance();
-        case iso_triangle :
-          return VirtualRefinementImp<quadrilateral, CoordType, iso_triangle>::instance();
-        case iso_quadrilateral :
-          return VirtualRefinementImp<quadrilateral, CoordType, iso_quadrilateral>::instance();
         default :
           break;
         }