diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 42309ceee21e..c621c98c6057 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -4544,7 +4544,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
 		break;
 
 	case MAINTENANCE_IN:
-		if (scsicmd[1] == MI_REPORT_SUPPORTED_OPERATION_CODES)
+		if ((scsicmd[1] & 0x1f) == MI_REPORT_SUPPORTED_OPERATION_CODES)
 			ata_scsi_rbuf_fill(&args, ata_scsiop_maint_in);
 		else
 			ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);