diff --git a/examples/messagedialogs.pp b/examples/messagedialogs.pp
index f789ce6164..a53b6f5385 100644
--- a/examples/messagedialogs.pp
+++ b/examples/messagedialogs.pp
@@ -32,7 +32,7 @@ Program MessagDialogs;
 
 {$mode objfpc}{$H+}
 
-uses Interfaces, Classes, Forms, Dialogs, Buttons;
+uses Interfaces, Classes, Forms, Dialogs, Buttons, StdCtrls;
      
 type
    TMainForm = class(TForm)
diff --git a/examples/trackbar.pp b/examples/trackbar.pp
index b9b5d8bded..9341bab57b 100644
--- a/examples/trackbar.pp
+++ b/examples/trackbar.pp
@@ -39,7 +39,7 @@ program Trackbar;
 {$mode objfpc}{$H+}
 
 uses
-  Interfaces, Classes, Forms, Buttons, Menus, ComCtrls,
+  Interfaces, Classes, Forms, Buttons, StdCtrls, Menus, ComCtrls,
   SysUtils, Controls;
 
 type