diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d80dd84..6b3b8a5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -302,7 +302,7 @@
 	return ;
 }
 
-static struct bus_type acpi_bus_type = {
+struct bus_type acpi_bus_type = {
 	.name		= "acpi",
 	.suspend	= acpi_device_suspend,
 	.resume		= acpi_device_resume,