diff --git a/include/prefix.cpp b/include/prefix.cpp
index 50be214b8..5469ed9b5 100755
--- a/include/prefix.cpp
+++ b/include/prefix.cpp
@@ -853,7 +853,7 @@ const TString& TFirm::codice_valuta() const
 {          
   const TString& codval = get(NDT_VALUTA);
   if (codval.empty())
-    return TCurrency::get_base_val();
+    return TCurrency::get_euro_val();
   return codval;
 }