diff --git a/include/wx/notebook.h b/include/wx/notebook.h
index 56d91a911f..e84263f72d 100644
--- a/include/wx/notebook.h
+++ b/include/wx/notebook.h
@@ -2,7 +2,9 @@
 #define __NOTEBOOKH_BASE__
 
 #if defined(__WINDOWS__)
+  #include  "wx/msw/notebook.h"
 #elif defined(__MOTIF__)
+  #error "wxNotebook not implemented under Motif"
 #elif defined(__GTK__)
   #include  "wx/gtk/notebook.h"
 #endif