diff --git a/src/main.c b/src/main.c
index 1372437..969e287 100644
--- a/src/main.c
+++ b/src/main.c
@@ -191,7 +191,7 @@ static int tip_client_get_hdr(struct tip_client *cli)
 	header_len = trailer - cli->buf;
 	payload = cli->buf + header_len;
 	payload_len = cli->buf_len - header_len;
-	cli->data_len += cli->buf_len;
+	cli->data_len += payload_len;
 	cli->buf_len = 0;
 	gettimeofday(&cli->tv_start, NULL);
 	cli->tv_last = cli->tv_start;