diff --git a/CurveComposite.cpp b/CurveComposite.cpp
index 8ed5640..32b2e8d 100644
--- a/CurveComposite.cpp
+++ b/CurveComposite.cpp
@@ -597,11 +597,12 @@ CurveComposite::Dump( string& sOut, bool bMM, const char* szNewLine) const
    const ICurve* pCrvSmpl = GetFirstCurve() ;
    while ( pCrvSmpl != nullptr  &&  i < MAX_CRV) {
      // assegno ed emetto nome e tipo della curva semplice
-      sOut += "#" + ToString( ++i) + " " + pCrvSmpl->GetTitle() + szNewLine ;
+      sOut += "#" + ToString( i) + " " + pCrvSmpl->GetTitle() + szNewLine ;
      // salvataggio della curva semplice
       if ( ! pCrvSmpl->Dump( sOut, bMM, szNewLine))
          return false ;
      // passo alla successiva
+      ++ i ;
       pCrvSmpl = GetNextCurve() ;
    }
    if ( pCrvSmpl != nullptr)