diff --git a/API_MachMgr.cpp b/API_MachMgr.cpp
index b94d83b..cfa2492 100644
--- a/API_MachMgr.cpp
+++ b/API_MachMgr.cpp
@@ -2236,7 +2236,8 @@ __stdcall EgtGetCalcPositions( const double ptP[3], int nCount, const double dAn
    DBLVECTOR vAng ;
    for ( int i = 0 ; i < nCount ; ++i)
       vAng.push_back( dAngs[i]) ;
-   return ( ExeGetCalcPositions( ptP, vAng, *pnStat, *pdX, *pdY, *pdZ) ? TRUE : FALSE) ;
+   *pnStat = 0 ;    // mantenuto per compatibilità
+   return ( ExeGetCalcPositions( ptP, vAng, *pdX, *pdY, *pdZ) ? TRUE : FALSE) ;
 }
 
 //-----------------------------------------------------------------------------