diff --git a/dns.c b/dns.c
index 776c3e2..f83fa1f 100644
--- a/dns.c
+++ b/dns.c
@@ -24,6 +24,7 @@
 #include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <unistd.h>
 #include <string.h>
 #include <ctype.h>