diff --git a/translate.h b/translate.h
index 6fc3c79..641768e 100644
--- a/translate.h
+++ b/translate.h
@@ -24,7 +24,9 @@
 void udp_to_udp6(int fd, const struct iphdr *ip, const struct udphdr *udp, const char *payload, size_t payload_size);
 void udp6_to_udp(int fd, const struct ip6_hdr *ip6, const struct udphdr *udp, const char *payload, size_t payload_size);
 
-void tcp_to_tcp6(int fd,const struct iphdr *ip, const struct tcphdr *tcp, const char *payload, size_t payload_size, const char *options, size_t options_size);
-void tcp6_to_tcp(int fd,const struct ip6_hdr *ip6, const struct tcphdr *tcp, const char *payload, size_t payload_size, const char *options, size_t options_size);
+void tcp_to_tcp6(int fd,const struct iphdr *ip, const struct tcphdr *tcp, size_t header_size,
+                 const char *payload, size_t payload_size);
+void tcp6_to_tcp(int fd,const struct ip6_hdr *ip6, const struct tcphdr *tcp, size_t header_size,
+                 const char *payload, size_t payload_size);
 
 #endif /* __TRANSLATE_H__ */