diff --git a/src/bisection-simpler-example.cc b/src/bisection-simpler-example.cc
index e38deb6bb457e820a5dcb50d23657cbe3d749282..ddc1fbfaf218d64d5bfbe2baca369a75c9d519fc 100644
--- a/src/bisection-simpler-example.cc
+++ b/src/bisection-simpler-example.cc
@@ -1,5 +1,9 @@
 /* -*- mode:c++; mode: flymake -*- */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <dune/fufem/interval.hh>
 
 #include <dune/tnnmg/nonlinearities/smallfunctional.hh>
diff --git a/src/bisection-simpler-example2-gradient.cc b/src/bisection-simpler-example2-gradient.cc
index 4f37d098700121cee5491c1e611b64304c6d78e9..2adcea7874ea74ee2cdcae2c6dad31f089f1186c 100644
--- a/src/bisection-simpler-example2-gradient.cc
+++ b/src/bisection-simpler-example2-gradient.cc
@@ -1,7 +1,9 @@
 /* -*- mode:c++; mode: flymake -*- */
 
-// FIXME: is there a bette way to do this?
-//#define DUNE_MINIMAL_DEBUG_LEVEL 2
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <dune/common/stdstreams.hh>
 
 #include <dune/fufem/interval.hh>
diff --git a/src/bisection-simpler-example2.cc b/src/bisection-simpler-example2.cc
index 840cd002faf1b2fcca565ff98be921c91eec42b2..f74e889dbd1ad7138a7bd64d88eaa36c27695603 100644
--- a/src/bisection-simpler-example2.cc
+++ b/src/bisection-simpler-example2.cc
@@ -1,5 +1,9 @@
 /* -*- mode:c++; mode: flymake -*- */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <dune/fufem/interval.hh>
 
 #include <dune/tnnmg/nonlinearities/smallfunctional.hh>