Hi, on this file in git today: AlpProtoAdd(&alp_proto_ctx, IPPROTO_TCP, ALPROTO_HTTP, "HEAD|20|", 4, 0, STREAM_TOSERVER); AlpProtoAdd(&alp_proto_ctx, IPPROTO_TCP, ALPROTO_HTTP, "HEAD|09|", 4, 0, STREAM_TOSERVER); maybe change 4 -> 5? Regards Rmkml