diff --git a/ha/ha3.cpp b/ha/ha3.cpp
index 6d2dcb3e9..40d906881 100755
--- a/ha/ha3.cpp
+++ b/ha/ha3.cpp
@@ -3,7 +3,7 @@
 
 #include "ha3.h"
 
-#define usage   "Error - usage : %s -{0|7|8}"
+#define usage   "Error - usage : %s -{0|6|7|8}"
 
 int main(int argc,char** argv)
 {
@@ -13,6 +13,7 @@ int main(int argc,char** argv)
   switch (r)
   {
   case  0: rt = ha3100(argc, argv);   break; //Gestione giri
+  case  6: rt = ha3700(argc, argv);   break; //Stampa storico
   case  7: rt = ha3800(argc, argv);   break; //Inserimento righe storico da documenti
   case  8: rt = ha3900(argc, argv);   break; //Gestione storico attrezzature
   default: error_box(usage, argv[0]); break;