--- tape.c~	2011-06-27 16:30:02.000000000 +0900
+++ tape.c	2011-06-28 10:08:36.000000000 +0900
@@ -425,7 +425,7 @@
 gethdr:
 	volno = newvol;
 	setdumpnum();
-	FLUSHTAPEBUF();
+	FLUSHTAPEBUF(); numtrec = 0;
 	if (gethead(&tmpbuf) == FAIL) {
 		dprintf(stdout, "header read failed at %ld blocks\n", blksread);
 		fprintf(stderr, "tape is not dump tape\n");