diff --git a/dune/tectonic/myblockproblem.hh b/dune/tectonic/myblockproblem.hh
index 06b05444fbef529ecfc92307ce77f6f2c3842f98..a620f471e40dab9453370f1996dffd96a9ab5df4 100644
--- a/dune/tectonic/myblockproblem.hh
+++ b/dune/tectonic/myblockproblem.hh
@@ -8,7 +8,6 @@
 
 #include <dune/solvers/common/staticmatrixtools.hh>
 #include <dune/tnnmg/problem-classes/bisection.hh>
-#include <dune/tnnmg/problem-classes/onedconvexfunction.hh>
 
 #include "globalnonlinearity.hh"
 #include "localnonlinearity.hh"