--- thc-ipv6-3.2/dnsrevenum6.c
+++ thc-ipv6-3.2/dnsrevenum6.c
@@ -17,6 +17,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 #include <strings.h>
 #include <string.h>