diff --git a/mkfs/main.c.old b/mkfs/main.c
index ea65c6d..79f985c 100644
--- a/mkfs/main.c.old
+++ b/mkfs/main.c
@@ -31,6 +31,7 @@
 #include <uuid/uuid.h>
 #include <ctype.h>
 #include <blkid/blkid.h>
+#include <limits.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "volumes.h"