diff --git a/Tree.cpp b/Tree.cpp
index 2beaa59..f2fa7c6 100644
--- a/Tree.cpp
+++ b/Tree.cpp
@@ -352,10 +352,6 @@ Tree::SetSurf( const SurfBezier* pSrfBz, const Point3d& ptMin, const Point3d& pt
             }
            // se ho fatto solo 1 split orizzontale e ho due celle foglie nId = 0 e nId = 1
             if ( m_mTree.size() == 3  &&  ! m_mTree.at(-1).IsSplitVert()) {
-               m_mTree[0].m_nLeft = -1 ;
-               m_mTree[0].m_nRight = -1 ;
-               m_mTree[1].m_nLeft = -1 ;
-               m_mTree[1].m_nRight = -1 ;
                m_mTree[0].SetSplitDirVert( true) ;
                Split( 0) ;
                m_mTree[1].SetSplitDirVert( true) ;