diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c
index 40047cf6783..e20350dc5d5 100644
--- a/board/compulab/cm_fx6/cm_fx6.c
+++ b/board/compulab/cm_fx6/cm_fx6.c
@@ -778,7 +778,7 @@ static int sata_imx_remove(struct udevice *dev)
 	return 0;
 }
 
-struct ahci_ops sata_imx_ops = {
+static const struct ahci_ops sata_imx_ops = {
 	.port_status = dwc_ahsata_port_status,
 	.reset	= dwc_ahsata_bus_reset,
 	.scan	= dwc_ahsata_scan,