diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 73aa7059b5569..97f9d2fa64294 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -2490,7 +2490,7 @@ static int mvumi_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	mhba->pdev = pdev;
 	mhba->shost = host;
-	mhba->unique_id = pdev->bus->number << 8 | pdev->devfn;
+	mhba->unique_id = pci_dev_id(pdev);
 
 	ret = mvumi_init_fw(mhba);
 	if (ret)