diff --git a/ot_fullscrape.c b/ot_fullscrape.c
index 25d6bd5..6f898c4 100644
--- a/ot_fullscrape.c
+++ b/ot_fullscrape.c
@@ -6,6 +6,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <pthread.h>
+#include <arpa/inet.h>
 
 /* Libowfat */
 #include "textcode.h"