diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index a58cb2171f95..26827e94d5e3 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -2884,7 +2884,6 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon
 			timeout = STp->long_timeout * 8;
 
 		DEBC_printk(STp, "Erasing tape.\n");
-		fileno = blkno = at_sm = 0;
 		break;
 	case MTSETBLK:		/* Set block length */
 	case MTSETDENSITY:	/* Set tape density */