diff --git a/runzip.c b/runzip.c
index 06bd559..2839c98 100644
--- a/runzip.c
+++ b/runzip.c
@@ -265,7 +265,7 @@ i64 runzip_fd(rzip_control *control, int fd_in, int fd_out, int fd_hist, i64 exp
 		md5_init_ctx (&control->ctx);
 	gettimeofday(&start,NULL);
 
-	while (total < expected_size || !control->eof) {
+	while (total < expected_size || !total || !control->eof) {
 		total += runzip_chunk(control, fd_in, fd_out, fd_hist, expected_size, total);
 		if (STDOUT)
 			dump_tmpoutfile(control, fd_out);