diff --git a/resource.c b/resource.c
index 12e218f..2b72ee2 100644
--- a/resource.c
+++ b/resource.c
@@ -31,6 +31,7 @@
 #include "defs.h"
 #include <sys/resource.h>
 #include <sys/times.h>
+#include <sys/sysinfo.h>
 #include <linux/kernel.h>
 
 #include "xlat/resources.h"