diff --git a/blktrace.c b/blktrace.c
index 64a610a95944c9ec1e5d4fdaba56b987e24c7943..3376294489ce9179e85ed3114a41a52ee6066306 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/sysmacros.h>
 
 #include "flist.h"
 #include "fio.h"