diff --git a/harmonicmaps.cc b/harmonicmaps.cc
index ecb5e0ab5a4e6866120dec16b0f735f092f9ee32..a377f2364870414b6fbcbae3c935d89d0c88460b 100644
--- a/harmonicmaps.cc
+++ b/harmonicmaps.cc
@@ -22,6 +22,8 @@
 #include <dune/grid/io/file/amirameshreader.hh>
 #include <dune/grid/io/file/amirameshwriter.hh>
 
+#include <dune/fufem/boundarypatch.hh>
+
 #include <dune/solvers/solvers/iterativesolver.hh>
 #include <dune/solvers/norms/energynorm.hh>