diff --git a/examples/cpchop.cpp b/examples/cpchop.cpp
index f66d901..2731a1a 100644
--- a/examples/cpchop.cpp
+++ b/examples/cpchop.cpp
@@ -18,8 +18,8 @@
 */
 
 
-#include "CornerpointChopper.hpp"
-#include "dune/upscaling/SinglePhaseUpscaler.hpp"
+#include <dune/common/CornerpointChopper.hpp>
+#include <dune/upscaling/SinglePhaseUpscaler.hpp>
 #include <dune/porsol/common/setupBoundaryConditions.hpp>
 #include <dune/common/Units.hpp>