diff --git a/os/access.c b/os/access.c
index 88a44d9e5..6d991b362 100644
--- a/os/access.c
+++ b/os/access.c
@@ -163,6 +163,10 @@ SOFTWARE.
 /* #endif */
 #endif
 
+#if defined(IPv6) && defined(AF_INET6)
+#include <arpa/inet.h>
+#endif
+
 #endif                          /* WIN32 */
 
 #define X_INCLUDE_NETDB_H
@@ -460,10 +464,6 @@ DefineSelf(int fd)
 #define ifraddr_size(a) (sizeof (a))
 #endif
 
-#if defined(IPv6) && defined(AF_INET6)
-#include <arpa/inet.h>
-#endif
-
 #if defined(IPv6) && defined(AF_INET6)
 static void
 in6_fillscopeid(struct sockaddr_in6 *sin6)