diff --git a/vcg/complex/trimesh/create/resampler.h b/vcg/complex/trimesh/create/resampler.h
index 0430c963..c18d5304 100644
--- a/vcg/complex/trimesh/create/resampler.h
+++ b/vcg/complex/trimesh/create/resampler.h
@@ -24,6 +24,7 @@
 #define __VCG_MESH_RESAMPLER
 
 #include <vcg/complex/trimesh/update/normal.h>
+#include <vcg/complex/trimesh/update/flag.h>
 #include <vcg/complex/trimesh/update/bounding.h>
 #include <vcg/complex/trimesh/update/edges.h>
 #include <vcg/complex/trimesh/create/marching_cubes.h>
@@ -518,4 +519,4 @@ static void Resample(Old_Mesh &old_mesh,New_Mesh &new_mesh,vcg::Point3<int> accu
 
 };//end namespace tri
 };//end namespace vcg
-#endif
\ No newline at end of file
+#endif