diff --git a/EXE_Exchange.cpp b/EXE_Exchange.cpp
index 00743ec..d61f9d9 100644
--- a/EXE_Exchange.cpp
+++ b/EXE_Exchange.cpp
@@ -594,8 +594,8 @@ ExeExport3dm( int nId, const string& sFilePath, int nFilter)
    PtrOwner<IExport3dm> pExp3dm( MyCreateExport3dm()) ;
    bOk = bOk && ! IsNull( pExp3dm) ;
    // eseguo l'esportazione
-   pExp3dm->SetOptions( nFilter) ;
-   bOk = bOk && pExp3dm->Export( pGeomDB, nId, sFilePath) ;
+   bOk = bOk  &&  pExp3dm->SetOptions( nFilter) ;
+   bOk = bOk  &&  pExp3dm->Export( pGeomDB, nId, sFilePath) ;
   // se richiesto, salvo il comando Lua equivalente
    if ( IsCmdLog()) {
       string sLua = "EgtExport3dm(" + ToString( nId) + ",'" +