diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
index a8dda635456dc1f8fb0d85799c3f605ea7cda39a..06bc2d2e7a7315ceb0f544aac1fcaec1af51fbc6 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
@@ -165,6 +165,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x5098),	/* Custom 2x40G QSFP */
 	CH_PCI_ID_TABLE_FENTRY(0x5099),	/* Custom 2x40G QSFP */
 	CH_PCI_ID_TABLE_FENTRY(0x509a),	/* Custom T520-CR */
+	CH_PCI_ID_TABLE_FENTRY(0x509b),	/* Custom T540-CR LOM */
 
 	/* T6 adapters:
 	 */