diff --git a/apps/sample/trimesh_normal/trimesh_normal.cpp b/apps/sample/trimesh_normal/trimesh_normal.cpp
index f7485e7e..db51b8a5 100644
--- a/apps/sample/trimesh_normal/trimesh_normal.cpp
+++ b/apps/sample/trimesh_normal/trimesh_normal.cpp
@@ -24,7 +24,6 @@
 
 #include<wrap/io_trimesh/import_off.h>
 
-#include<vcg/complex/algorithms/update/curvature.h>
 #include<vcg/complex/algorithms/update/normal.h>
 
 using namespace vcg;