diff --git a/MachineCalc.cpp b/MachineCalc.cpp
index adbdca4..d7e1b2e 100644
--- a/MachineCalc.cpp
+++ b/MachineCalc.cpp
@@ -1744,8 +1744,12 @@ Machine::VerifyProtectedAreas( double dX, double dY, double dZ, const DBLVECTOR&
   // salvo eventuale variabile EMC_VAR già presente
    bool bOldEMC = LuaChangeNameGlobVar( EMC_VAR, EMC_VAR_BACKUP) ;
   // definisco variabili
+   string sTool, sHead ; int nExit ;
    bOk = bOk && LuaCreateGlobTable( EMC_VAR) ;
    bOk = bOk && LuaSetGlobVar( EMC_VAR + EVAR_VER, GetEMkVer()) ;
+   bOk = bOk && GetCurrHead( sHead) && LuaSetGlobVar( EMC_VAR + EVAR_HEAD, sHead) ;
+   bOk = bOk && GetCurrExit( nExit) && LuaSetGlobVar( EMC_VAR + EVAR_EXIT, nExit) ;
+   bOk = bOk && GetCurrTool( sTool) && LuaSetGlobVar( EMC_VAR + EVAR_TOOL, sTool) ;
    bOk = bOk && LuaSetGlobVar( EMC_VAR + EVAR_L1, dX) ;
    bOk = bOk && LuaSetGlobVar( EMC_VAR + EVAR_L2, dY) ;
    bOk = bOk && LuaSetGlobVar( EMC_VAR + EVAR_L3, dZ) ;