diff --git a/gtk/gtkboxprivate.h b/gtk/gtkboxprivate.h
index 9a4d463a4c..9628d3c306 100644
--- a/gtk/gtkboxprivate.h
+++ b/gtk/gtkboxprivate.h
@@ -19,6 +19,8 @@
 #ifndef __GTK_BOX_PRIVATE_H__
 #define __GTK_BOX_PRIVATE_H__
 
+#include "gtkbox.h"
+
 G_BEGIN_DECLS
 
 
diff --git a/gtk/gtkhbox.c b/gtk/gtkhbox.c
index 021fb22d68..cdfada50b4 100644
--- a/gtk/gtkhbox.c
+++ b/gtk/gtkhbox.c
@@ -26,10 +26,10 @@
 
 #include "config.h"
 
+#include "gtkboxprivate.h"
+#include "gtkorientable.h"
 #undef GTK_DISABLE_DEPRECATED
 #include "gtkhbox.h"
-#include "gtkorientable.h"
-#include "gtkboxprivate.h"
 
 
 /**
diff --git a/gtk/gtkvbox.c b/gtk/gtkvbox.c
index 9251291f11..e3515eb643 100644
--- a/gtk/gtkvbox.c
+++ b/gtk/gtkvbox.c
@@ -26,6 +26,7 @@
 
 #include "config.h"
 
+#include "gtkboxprivate.h"
 #include "gtkorientable.h"
 #undef GTK_DISABLE_DEPRECATED
 #include "gtkvbox.h"