diff --git a/Xext/xf86bigfont.c b/Xext/xf86bigfont.c
index 44a8e7dd8..cf7d52fb8 100644
--- a/Xext/xf86bigfont.c
+++ b/Xext/xf86bigfont.c
@@ -58,6 +58,10 @@
 
 #include <X11/X.h>
 #include <X11/Xproto.h>
+#include <X11/extensions/xf86bigfproto.h>
+#include <X11/fonts/fontstruct.h>
+#include <X11/fonts/libxfont2.h>
+
 #include "misc.h"
 #include "os.h"
 #include "dixstruct.h"