diff --git a/apps/sample/trimesh_base/trimesh_base.cpp b/apps/sample/trimesh_base/trimesh_base.cpp
index 4626a8bb..7b767c96 100644
--- a/apps/sample/trimesh_base/trimesh_base.cpp
+++ b/apps/sample/trimesh_base/trimesh_base.cpp
@@ -16,14 +16,7 @@ class AEdge;   // dummy prototype never used
 class AVertex  : public vcg::VertexSimp2< AVertex, AEdge, AFace, vcg::vert::Coord3f>{};
 class AFace    : public vcg::FaceSimp2< AVertex, AEdge, AFace, vcg::face::VertexRef,vcg::face::Color4b,vcg::face::Normal3f> {};
 
-class AMesh : public vcg::tri::TriMesh< std::vector<AVertex>, std::vector<AFace> >
-{
-public:
-	AMesh()
-		:vcg::tri::TriMesh< std::vector<AVertex>, std::vector<AFace> >()
-	{
-	}
-};
+class AMesh : public vcg::tri::TriMesh< std::vector<AVertex>, std::vector<AFace> > {};
 
 class CFace;
 class CVertex;
@@ -31,14 +24,7 @@ class CEdge;   // dummy prototype never used
 class CVertex  : public vcg::VertexSimp2< CVertex, CEdge, CFace, vcg::vert::Coord3f,vcg::vert::Normal3f>{};
 class CFace    : public vcg::FaceSimp2< CVertex, CEdge, CFace, vcg::face::VertexRef, vcg::face::Normal3f> {};
 
-class CMesh : public vcg::tri::TriMesh< std::vector<CVertex>, std::vector<CFace> >
-{
-public:
-	CMesh()
-		:vcg::tri::TriMesh< std::vector<CVertex>, std::vector<CFace> >()
-	{
-	}
-};
+class CMesh : public vcg::tri::TriMesh< std::vector<CVertex>, std::vector<CFace> > {};
 
 int main(int , char **)
 {