diff --git a/ba/ba3800.cpp b/ba/ba3800.cpp
index d2036765a..cb3946e6c 100755
--- a/ba/ba3800.cpp
+++ b/ba/ba3800.cpp
@@ -1108,8 +1108,8 @@ bool BA3800_application::preprocess_studio(int counter)
     //    _classe_da_stampare = format ("%1c%1c%8s%2d",bil->sez,bil->let,(const char*) bil->numr,bil->num);
     
     codtab = _tabivd->get("CODTAB");
-    _sez_da_stamp  = *(codtab.mid(0,1));
-    _let_da_stamp  = *(codtab.mid(1,1));
+    _sez_da_stamp  = codtab[0];
+    _let_da_stamp  = codtab[1];
     _numr_da_stamp = codtab.mid(2,4);
     _numr_da_stamp.ltrim();
     _num_da_stamp  = codtab.mid(6,2);