diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index d5a3878..b4bbe48 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -229,7 +229,7 @@
 
 };
 
-static struct pci_device_id pdc_sata_pci_tbl[] = {
+static const struct pci_device_id pdc_sata_pci_tbl[] = {
 	{ PCI_VENDOR_ID_PROMISE, 0x6622, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_20621 },
 	{ }	/* terminate list */