diff --git a/ipv6.h b/ipv6.h
index b898ad9..019de17 100644
--- a/ipv6.h
+++ b/ipv6.h
@@ -18,6 +18,8 @@
 #ifndef __IPV6_H__
 #define __IPV6_H__
 
-void ipv6_packet(int fd, const char *packet, size_t len);
+#include "translate.h"
+
+int ipv6_packet(clat_packet out, int pos, const char *packet, size_t len);
 
 #endif /* __IPV6_H__ */