diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 29ef505..ca95d90 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -265,7 +265,7 @@ int acpi_match_device_ids(struct acpi_device *device,
 
 	for (id = ids; id->id[0]; id++)
 		list_for_each_entry(hwid, &device->pnp.ids, list)
-			if (!strcmp((char *) id->id, hwid->id))
+			if (!strcasecmp((char *) id->id, hwid->id))
 				return 0;
 
 	return -ENOENT;