diff --git a/ba/ba4200.cpp b/ba/ba4200.cpp
index 80278496c..14a8668b2 100755
--- a/ba/ba4200.cpp
+++ b/ba/ba4200.cpp
@@ -35,7 +35,7 @@ protected:
   virtual bool changing_mask(int mode) {return _msk[tip_msk()] == NULL;}
   virtual const char* get_next_key();
   virtual TMask* get_mask(int mode) ;
-  virtual void write_enable(const bool on = TRUE);
+  virtual void write_enable(bool on = TRUE);
   
   static bool ba4200_handler(TMask& m, KEY k);
   
@@ -476,11 +476,11 @@ bool TPersone_app::user_create()
   return TRUE;
 }
 
-void TPersone_app::write_enable(const bool on)
+void TPersone_app::write_enable(bool on)
 
 {
-  _rel[MSKF]->write_enable(-1, on);
-  _rel[MSKG]->write_enable(-1, on);
+  _rel[MSKF]->write_enable(0, on);
+  _rel[MSKG]->write_enable(0, on);
 }
 
 bool TPersone_app::user_destroy()