diff --git a/src/i830_xf86Crtc.c b/src/i830_xf86Crtc.c
index 5378b34f..3a592e50 100644
--- a/src/i830_xf86Crtc.c
+++ b/src/i830_xf86Crtc.c
@@ -33,6 +33,7 @@
 #include "xf86.h"
 #include "xf86DDC.h"
 #include "i830_xf86Crtc.h"
+#include "X11/extensions/render.h"
 
 /*
  * Crtc functions