diff --git a/src/hlua.c b/src/hlua.c
index 0144c3d..2f7fe99 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -1974,7 +1974,7 @@
 	/* send data */
 	if (len < send_len)
 		send_len = len;
-	len = ci_putblk(&s->req, buf+sent, send_len);
+	len = ci_putblk(&s->req, buf, send_len);
 
 	/* "Not enough space" (-1), "Buffer too little to contain
 	 * the data" (-2) are not expected because the available length