diff --git a/src/Mod/Path/App/Area.cpp b/src/Mod/Path/App/Area.cpp
index 65406e4ab2..72d797aa2f 100644
--- a/src/Mod/Path/App/Area.cpp
+++ b/src/Mod/Path/App/Area.cpp
@@ -24,6 +24,7 @@
 #ifndef _PreComp_
 #endif
 #include <boost/geometry.hpp>
+#include <boost/geometry/index/rtree.hpp>
 #include <boost/geometry/geometries/geometries.hpp>
 #include <boost/geometry/geometries/register/point.hpp>
 #include <boost/range/adaptor/indexed.hpp>