diff --git a/apps/sample/trimesh_base/trimesh_base.cpp b/apps/sample/trimesh_base/trimesh_base.cpp
index d44ab0c0..1ee1a160 100644
--- a/apps/sample/trimesh_base/trimesh_base.cpp
+++ b/apps/sample/trimesh_base/trimesh_base.cpp
@@ -40,7 +40,7 @@
 #include<vcg/complex/trimesh/update/topology.h>
 
 // normals
-#include<vcg/complex/trimesh/update/normal.h> //class UpdateNormals
+#include<vcg/complex/trimesh/update/normal.h>
 
 using namespace vcg;
 using namespace std;
@@ -48,36 +48,36 @@ using namespace std;
 class MyEdge;
 class MyFace;
 class MyVertex;
-struct MyUsedTypes : public UsedTypes<	Use<MyVertex>		::AsVertexType,
-																				Use<MyEdge>			::AsEdgeType,
-																				Use<MyFace>			::AsFaceType>{};
+struct MyUsedTypes : public UsedTypes<	Use<MyVertex>   ::AsVertexType,
+                                        Use<MyEdge>     ::AsEdgeType,
+                                        Use<MyFace>     ::AsFaceType>{};
 
 class MyVertex  : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags  >{};
 class MyFace    : public Face< MyUsedTypes, face::FFAdj,  face::VertexRef, face::BitFlags > {};
-class MyEdge		: public Edge<MyUsedTypes>{};
-class MyMesh    : public vcg::tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge>  > {};
+class MyEdge    : public Edge<MyUsedTypes>{};
+class MyMesh    : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge>  > {};
 
 int main( int argc, char **argv )
 {
-		if(argc<2)
-		{
-				printf("Usage trimesh_base <meshfilename.ply>\n");
-				return -1;
-		}
+  if(argc<2)
+  {
+    printf("Usage trimesh_base <meshfilename.ply>\n");
+    return -1;
+  }
 
-		MyMesh m;
+  MyMesh m;
 
-		if(vcg::tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0)
-		{
-				printf("Error reading file  %s\n",argv[1]);
-				exit(0);
-		}
+  if(tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0)
+  {
+    printf("Error reading file  %s\n",argv[1]);
+    exit(0);
+  }
 
-		vcg::tri::UpdateTopology<MyMesh>::FaceFace(m);
-		vcg::tri::UpdateFlags<MyMesh>::FaceBorderFromFF(m);
-		vcg::tri::UpdateNormals<MyMesh>::PerVertexNormalized(m);
-		printf("Input mesh  vn:%i fn:%i\n",m.vn,m.fn);
-		printf( "Mesh has %i vert and %i faces\n", m.vn, m.fn );
+  tri::UpdateTopology<MyMesh>::FaceFace(m);
+  tri::UpdateFlags<MyMesh>::FaceBorderFromFF(m);
+  tri::UpdateNormals<MyMesh>::PerVertexNormalized(m);
+  printf("Input mesh  vn:%i fn:%i\n",m.vn,m.fn);
+  printf( "Mesh has %i vert and %i faces\n", m.vn, m.fn );
 
-    return 0;
+  return 0;
 }