diff --git a/Milling.cpp b/Milling.cpp
index ee86ae2..9c51a81 100644
--- a/Milling.cpp
+++ b/Milling.cpp
@@ -3091,6 +3091,7 @@ Milling::AddOneWayMilling( const ICurveComposite* pCompo, const Vector3d& vtTool
          if ( pCompo->GetParamAtLength( m_Params.m_dLiTang, dU)) {
             const_cast<ICurveComposite*>( pCompo)->ChangeStartPoint( dU) ;
             const_cast<ICurveComposite*>( pCompo)->MergeCurves( 10 * EPS_SMALL, 10 * EPS_ANG_SMALL, false) ;
+            VerifyArcs( const_cast<ICurveComposite*>( pCompo)) ;
          }
       }
      // ciclo sulle curve elementari