diff --git a/src/one-body-sample.cc b/src/one-body-sample.cc
index b375001a406fff75f5e6336d8d3928f55d840b0c..49e101b76c00ca33edc8535143eead0ac48d7ee2 100644
--- a/src/one-body-sample.cc
+++ b/src/one-body-sample.cc
@@ -52,16 +52,15 @@
 #include <dune/fufem/boundarypatch.hh>
 #include <dune/fufem/dunepython.hh>
 #include <dune/fufem/functions/basisgridfunction.hh>
-
 #include <dune/fufem/functionspacebases/p1nodalbasis.hh>
 #include <dune/fufem/sharedpointermap.hh>
 #include <dune/solvers/norms/energynorm.hh>
 #include <dune/solvers/norms/sumnorm.hh>
 #include <dune/solvers/solvers/loopsolver.hh>
 #include <dune/solvers/solvers/solver.hh>
-#include <dune/tnnmg/problem-classes/convexproblem.hh>
 #include <dune/tnnmg/nonlinearities/zerononlinearity.hh>
 #include <dune/tnnmg/problem-classes/blocknonlineartnnmgproblem.hh>
+#include <dune/tnnmg/problem-classes/convexproblem.hh>
 
 #include <dune/tectonic/myblockproblem.hh>
 #include <dune/tectonic/globalnonlinearity.hh>