diff --git a/hw/dmx/dmx.c b/hw/dmx/dmx.c
index fee28aa7d..c91b58304 100644
--- a/hw/dmx/dmx.c
+++ b/hw/dmx/dmx.c
@@ -53,10 +53,10 @@
 #include "opaque.h"
 
 #include "dmxextension.h"
-#include "dmxproto.h"
+#include <X11/extensions/dmxproto.h>
 
 #define _DMX_SERVER_
-#include "dmxext.h"
+#include <X11/extensions/dmxext.h>
 
 #ifdef PANORAMIX
 #include "panoramiX.h"