diff --git a/samples/calendar/calendar.cpp b/samples/calendar/calendar.cpp
index 580de98986..6370bb2411 100644
--- a/samples/calendar/calendar.cpp
+++ b/samples/calendar/calendar.cpp
@@ -35,13 +35,13 @@
     #include "wx/layout.h"
     #include "wx/msgdlg.h"
     #include "wx/icon.h"
+    #include "wx/button.h"
+    #include "wx/sizer.h"
+    #include "wx/textctrl.h"
+    #include "wx/settings.h"
 #endif
 
-#include "wx/sizer.h"
-#include "wx/textctrl.h"
-
 #include "wx/calctrl.h"
-#include "wx/settings.h"
 
 #if wxUSE_DATEPICKCTRL
     #include "wx/datectrl.h"
diff --git a/samples/wizard/wizard.cpp b/samples/wizard/wizard.cpp
index 01917769a8..22de882986 100644
--- a/samples/wizard/wizard.cpp
+++ b/samples/wizard/wizard.cpp
@@ -26,6 +26,7 @@
 
 // for all others, include the necessary headers
 #ifndef WX_PRECOMP
+    #include "wx/frame.h"
     #include "wx/stattext.h"
     #include "wx/log.h"
     #include "wx/app.h"