diff --git a/EXE_MachMgr.cpp b/EXE_MachMgr.cpp
index 3a864be..7611214 100644
--- a/EXE_MachMgr.cpp
+++ b/EXE_MachMgr.cpp
@@ -564,7 +564,7 @@ ExeModifyRawPart( int nRawId, int nCrvId, double dOverMat, double dZmin, double
    IMachMgr* pMachMgr = GetCurrMachMgr() ;
    VERIFY_MACHMGR( pMachMgr, false)
   // modifico grezzo indicato nella macchinata corrente
-   bool bOk = pMachMgr->ModifyRawPart( nRawId, nCrvId, dOverMat, dZmin, dHeight, cCol) ;
+   bool bOk = pMachMgr->ModifyRawPart( nRawId, nCrvId, dOverMat, dHeight, cCol) ;
    ExeSetModified() ;
   // restituisco il risultato
    return bOk ;