diff --git a/src/os2/ownerdrw.cpp b/src/os2/ownerdrw.cpp
index 9e9dd6568d..2cfddaec1b 100644
--- a/src/os2/ownerdrw.cpp
+++ b/src/os2/ownerdrw.cpp
@@ -18,7 +18,7 @@
 
 #ifndef WX_PRECOMP
   #include "wx/window.h"
-  #include "wx/msw/private.h"
+  #include "wx/os2/private.h"
   #include "wx/font.h"
   #include "wx/bitmap.h"
   #include "wx/dcmemory.h"
diff --git a/src/os2/window.cpp b/src/os2/window.cpp
index 3c6e0b747e..3fad1751e2 100644
--- a/src/os2/window.cpp
+++ b/src/os2/window.cpp
@@ -33,6 +33,7 @@
     #include "wx/frame.h"
     #include "wx/listbox.h"
     #include "wx/button.h"
+    #include "wx/bmpbuttn.h"
     #include "wx/msgdlg.h"
     #include "wx/scrolwin.h"
     #include "wx/radiobox.h"