1 files changed, 2 insertions, 2 deletions
diff --git a/lib/ftp.c b/lib/ftp.c
index 4c4396abb..715afc2f2 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -4470,8 +4470,8 @@ CURLcode ftp_regular_transfer(struct connectdata *conn,
 
   Curl_pgrsSetUploadCounter(data, 0);
   Curl_pgrsSetDownloadCounter(data, 0);
-  Curl_pgrsSetUploadSize(data, 0);
-  Curl_pgrsSetDownloadSize(data, 0);
+  Curl_pgrsSetUploadSize(data, -1);
+  Curl_pgrsSetDownloadSize(data, -1);
 
   ftpc->ctl_valid = TRUE; /* starts good */