diff --git a/cg/cg2106.cpp b/cg/cg2106.cpp
index 1535d8910..173acca2c 100755
--- a/cg/cg2106.cpp
+++ b/cg/cg2106.cpp
@@ -122,10 +122,10 @@ bool TColor_mask::color_handler(TMask_field& f, KEY k)
 
 bool TColor_mask::reset_handler(TMask_field& f, KEY k)
 {
-  if (k == K_SPACE && yesno_box("Si desidera azzerare tutti i colori?"))
+  if (k == K_SPACE && f.yesno_box("Si desidera azzerare tutti i colori?"))
   {           
     app().reset_colors();                                     
-    TSheet_field& s = (TSheet_field&)f.mask().field(101);
+    TSheet_field& s = f.mask().sfield(101);
     s.set_back_and_fore_color(NORMAL_BACK_COLOR, NORMAL_COLOR, -1);
     s.force_update();
   }