diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index 2595598..29821b9 100644
--- a/drivers/ata/ahci_st.c
+++ b/drivers/ata/ahci_st.c
@@ -221,7 +221,7 @@
 
 static SIMPLE_DEV_PM_OPS(st_ahci_pm_ops, st_ahci_suspend, st_ahci_resume);
 
-static struct of_device_id st_ahci_match[] = {
+static const struct of_device_id st_ahci_match[] = {
 	{ .compatible = "st,ahci", },
 	{},
 };