diff --git a/tools/md5.c b/tools/md5.c
index 9f6473d2c..e043e8537 100644
--- a/tools/md5.c
+++ b/tools/md5.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdint.h>
 
 #include "common.h"