diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 0f18480b33b55fe88ecd6827c8b92b43646bc9f5..7e76b35f422c62a8d2de5074b55d76734cc420b3 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -2867,7 +2867,7 @@ MODULE_PARM_DESC(max_tx_size, "maximum size of TX AAL5 frames");
 MODULE_PARM_DESC(max_rx_size, "maximum size of RX AAL5 frames");
 MODULE_PARM_DESC(pci_lat, "PCI latency in bus cycles");
 
-static struct pci_device_id hrz_pci_tbl[] = {
+static const struct pci_device_id hrz_pci_tbl[] = {
 	{ PCI_VENDOR_ID_MADGE, PCI_DEVICE_ID_MADGE_HORIZON, PCI_ANY_ID, PCI_ANY_ID,
 	  0, 0, 0 },
 	{ 0, }