diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c
index 8b2e9b905cda..64d163914335 100644
--- a/sound/aoa/soundbus/core.c
+++ b/sound/aoa/soundbus/core.c
@@ -163,8 +163,6 @@ static int soundbus_device_resume(struct device * dev)
 
 #endif /* CONFIG_PM */
 
-extern struct device_attribute soundbus_dev_attrs[];
-
 static struct bus_type soundbus_bus_type = {
 	.name		= "aoa-soundbus",
 	.probe		= soundbus_probe,
diff --git a/sound/aoa/soundbus/soundbus.h b/sound/aoa/soundbus/soundbus.h
index 5c27297835d7..622cd37a0118 100644
--- a/sound/aoa/soundbus/soundbus.h
+++ b/sound/aoa/soundbus/soundbus.h
@@ -199,4 +199,6 @@ struct soundbus_driver {
 extern int soundbus_register_driver(struct soundbus_driver *drv);
 extern void soundbus_unregister_driver(struct soundbus_driver *drv);
 
+extern struct device_attribute soundbus_dev_attrs[];
+
 #endif /* __SOUNDBUS_H */