diff --git a/lv/lv0500.cpp b/lv/lv0500.cpp
index 086655832..5501abc50 100755
--- a/lv/lv0500.cpp
+++ b/lv/lv0500.cpp
@@ -18,6 +18,7 @@ class TPass_plan_contr_mask : public TAutomask
 {
 private:  
   void proponi_orario();
+  void sistema_data(TOperable_field& o);
 
 protected:
   virtual bool on_field_event(TOperable_field& o, TField_event e, long jolly);
@@ -31,7 +32,17 @@ void TPass_plan_contr_mask::proponi_orario()
   TSheet_field& sheet = sfield(F_PASPLAN);  
   TToken_string& rigamodificata = sheet.row(sheet.items()-1);
   rigamodificata.add("00:00",sheet.cid2index(F_S_ORA));
-  return;
+}
+
+//SISTEMA_DATA: metodo che aggiunge un separatore tra giorno e mese quando necessario
+void TPass_plan_contr_mask::sistema_data(TOperable_field& o)
+{
+  TString8 data = o.get();
+  if (data.len() < 5)
+  {
+    data.insert("-", 2);
+    o.set(data);
+  }
 }
 
 bool TPass_plan_contr_mask::on_field_event(TOperable_field& o, TField_event e, long jolly)
@@ -47,6 +58,11 @@ bool TPass_plan_contr_mask::on_field_event(TOperable_field& o, TField_event e, l
     default: break;
     }
     break;
+  case F_S_DASTAG:
+  case F_S_ASTAG:
+    if (e == fe_modify)
+      sistema_data(o);
+    break;  
   default: 
     break;
   }