diff --git a/Surface_mesh/examples/Surface_mesh/sm_do_intersect.cpp b/Surface_mesh/examples/Surface_mesh/sm_do_intersect.cpp
index 034b82b82bb..c6583404588 100644
--- a/Surface_mesh/examples/Surface_mesh/sm_do_intersect.cpp
+++ b/Surface_mesh/examples/Surface_mesh/sm_do_intersect.cpp
@@ -1,13 +1,13 @@
-#include <algorithm>
-#include <vector>
-#include <fstream>
-
 #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
 #include <CGAL/Surface_mesh.h>
 
 #include <CGAL/box_intersection_d.h>
 #include <CGAL/Timer.h>
 
+#include <algorithm>
+#include <vector>
+#include <fstream>
+
 typedef CGAL::Exact_predicates_exact_constructions_kernel K;
 
 typedef K::Triangle_3 Triangle_3;