diff --git a/gv/gv0600.cpp b/gv/gv0600.cpp
index 748b3c362..7031a9d19 100755
--- a/gv/gv0600.cpp
+++ b/gv/gv0600.cpp
@@ -61,6 +61,7 @@ class TF4_sender : public TSkeleton_application
 protected:
   bool new_rec(const char* t) { CHECK(t && *t, "Tipo non valido"); return _f24->new_rec(t) > 0; }
   void set(const char* field, const TVariant& var);
+  void set(const char* field, const TString& s)  { set(field, TVariant(s)); }
   void set(const char* field, const int n)    { set(field, TVariant((long)n)); }
   void set(const char* field, const char* s)  { set(field, TVariant(s)); }
   void set(const char* field, const TDate& d) { set(field, TVariant(d)); }