diff --git a/ares_options.c b/ares_options.c
index 1de36c482..26dc67893 100644
--- a/ares_options.c
+++ b/ares_options.c
@@ -23,6 +23,10 @@
 #include "ares_private.h"
 #include "inet_net_pton.h"
 
+/* For inet_pton */
+#ifdef HAVE_ARPA_INET_H
+#  include <arpa/inet.h>
+#endif
 
 int ares_get_servers(ares_channel channel,
                      struct ares_addr_node **servers)