diff --git a/src/spatial-solving/solverfactory.hh b/src/spatial-solving/solverfactory.hh
index 813d2d03b89bf6fab6fcec22873c0d41af71740a..46df246cede27bbbcf1e74aee4769c2979036af5 100644
--- a/src/spatial-solving/solverfactory.hh
+++ b/src/spatial-solving/solverfactory.hh
@@ -12,6 +12,8 @@
 #include <dune/tnnmg/iterationsteps/genericnonlineargs.hh>
 #include <dune/tnnmg/iterationsteps/tnnmgstep.hh>
 
+#define USE_OLD_TNNMG
+
 template <size_t dim, class BlockProblemTEMPLATE, class DeformedGridTEMPLATE>
 class SolverFactory {
 public: