diff --git a/src/transport.c b/src/transport.c
index 6eaae3e..e3ef072 100644
--- a/src/transport.c
+++ b/src/transport.c
@@ -643,6 +643,7 @@ send_existing(LIBSSH2_SESSION * session, unsigned char *data,
     if (rc == length) {
         /* the remainder of the package was sent */
         p->ototal_num = 0;
+        p->olen = 0;
     }
     else if (rc < 0) {
         /* nothing was sent */