diff --git a/EXE_NstPartNesting.cpp b/EXE_NstPartNesting.cpp
index 410d97f..2b55f70 100644
--- a/EXE_NstPartNesting.cpp
+++ b/EXE_NstPartNesting.cpp
@@ -65,7 +65,7 @@ GetFlatPartCutRegions( IGeomDB* pGeomDB, int nId, bool bReduced, INTVECTOR& vCrI
   // recupero gruppo preview lavorazioni del pezzo
    int nPVGrp = pGeomDB->GetFirstNameInGroup( nId, MCH_PV) ;
    if ( nPVGrp == GDB_ID_NULL)
-      return false ;
+      return true ;
   // ciclo sulle lavorazioni
    int nMchId = pGeomDB->GetFirstGroupInGroup( nPVGrp) ;
    while ( nMchId != GDB_ID_NULL) {