diff --git a/util.c b/util.c
index 6ed87a7626..b54c24a3dc 100644
--- a/util.c
+++ b/util.c
@@ -10,6 +10,7 @@
 #include <syslog.h>
 #include <sched.h>
 #include <sys/resource.h>
+#include <linux/sched.h>
 
 #include "macro.h"
 #include "util.h"