diff --git a/tests/radeon/radeon_ttm.c b/tests/radeon/radeon_ttm.c
index 246fd993..ac3297aa 100644
--- a/tests/radeon/radeon_ttm.c
+++ b/tests/radeon/radeon_ttm.c
@@ -25,7 +25,9 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "rbo.h"
+#include "xf86drm.h"
 
 /* allocate as many single page bo to try to starve the kernel
  * memory zone (below highmem)