diff --git a/lcl/include/application.inc b/lcl/include/application.inc
index 3379a2bed1..85161205d0 100644
--- a/lcl/include/application.inc
+++ b/lcl/include/application.inc
@@ -959,7 +959,7 @@ procedure TApplication.UpdateVisible;
     AForm: TCustomForm;
   begin
     Result := False;
-    // how to count correct? Do we need to count TCustomForms exclude THintWindow
+    // How to count correctly? Do we need to count TCustomForms exclude THintWindow
     // or just count TForm descendants?
     for i := 0 to Screen.FormCount - 1 do
     begin
@@ -976,8 +976,8 @@ procedure TApplication.UpdateVisible;
   end;
 
 begin
-  // if there are visible forms wich shares application taskbar item then application
-  // task bar item must be visible too else hide it
+  // If there are visible forms which share application taskbar item then
+  // application task bar item must be visible, too. Otherwise hide it.
   WidgetSet.AppSetVisible(HasVisibleForms);
 end;