--- ./iptables/xtables-monitor.c.orig	2022-06-07 16:59:29.101977262 +0200
+++ ./iptables/xtables-monitor.c	2022-06-07 16:59:18.748449786 +0200
@@ -10,6 +10,8 @@
  */
 
 #define _GNU_SOURCE
+#include <inttypes.h>
+
 #include "config.h"
 #include <errno.h>
 #include <stdlib.h>