diff --git a/print-ip6opts.c b/print-ip6opts.c
index 4c16d80..14768de 100644
--- a/print-ip6opts.c
+++ b/print-ip6opts.c
@@ -35,12 +35,12 @@
 
 #include <netdissect-stdinc.h>
 
-#include "ip6.h"
-
 #include "netdissect.h"
 #include "addrtoname.h"
 #include "extract.h"
 
+#include "ip6.h"
+
 static void
 ip6_sopt_print(netdissect_options *ndo, const u_char *bp, int len)
 {