diff --git a/drivers/video/backlight/apple_bl.c b/drivers/video/backlight/apple_bl.c
index a523b255e124cc3ff44e4b39d15c9ba4a6f5761a..ef5ca0d6cd208b1fc3d6f9f69c4ef3eea82cc1c7 100644
--- a/drivers/video/backlight/apple_bl.c
+++ b/drivers/video/backlight/apple_bl.c
@@ -25,6 +25,7 @@
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/atomic.h>
+#include <linux/apple_bl.h>
 
 static struct backlight_device *apple_backlight_device;
 
diff --git a/include/linux/apple_bl.h b/include/linux/apple_bl.h
index 47bedc0eee6939b8c1f397177c8c0ef6a5148f9c..0a95e730fcea706a185f52af4b3c563ee40e7d7f 100644
--- a/include/linux/apple_bl.h
+++ b/include/linux/apple_bl.h
@@ -5,7 +5,7 @@
 #ifndef _LINUX_APPLE_BL_H
 #define _LINUX_APPLE_BL_H
 
-#ifdef CONFIG_BACKLIGHT_APPLE
+#if defined(CONFIG_BACKLIGHT_APPLE) || defined(CONFIG_BACKLIGHT_APPLE_MODULE)
 
 extern int apple_bl_register(void);
 extern void apple_bl_unregister(void);