diff --git a/include/wx/mdi.h b/include/wx/mdi.h
index 376881a7da..2165d1a1fe 100644
--- a/include/wx/mdi.h
+++ b/include/wx/mdi.h
@@ -1,21 +1,25 @@
 #ifndef _WX_MDI_H_BASE_
 #define _WX_MDI_H_BASE_
 
+#if wxUSE_MDI_ARCHITECTURE
+
 #if defined(__WXUNIVERSAL__)
-#include "wx/generic/mdig.h"
+    #include "wx/generic/mdig.h"
 #elif defined(__WXMSW__)
-#include "wx/msw/mdi.h"
+    #include "wx/msw/mdi.h"
 #elif defined(__WXMOTIF__)
-#include "wx/motif/mdi.h"
+    #include "wx/motif/mdi.h"
 #elif defined(__WXGTK__)
-#include "wx/gtk/mdi.h"
+    #include "wx/gtk/mdi.h"
 #elif defined(__WXMAC__)
-#include "wx/mac/mdi.h"
+    #include "wx/mac/mdi.h"
 #elif defined(__WXCOCOA__)
-#include "wx/generic/mdig.h"
+    #include "wx/generic/mdig.h"
 #elif defined(__WXPM__)
-#include "wx/generic/mdig.h"
+    #include "wx/generic/mdig.h"
 #endif
 
+#endif // wxUSE_MDI_ARCHITECTURE
+
 #endif
     // _WX_MDI_H_BASE_