diff --git a/drivers/video/aty/atyfb.h b/drivers/video/aty/atyfb.h
index f72faff33c0c..dc62f8e282b4 100644
--- a/drivers/video/aty/atyfb.h
+++ b/drivers/video/aty/atyfb.h
@@ -284,7 +284,8 @@ static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par)
 #endif
 }
 
-#if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD)
+#if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || \
+defined (CONFIG_FB_ATY_GENERIC_LCD) || defined (CONFIG_FB_ATY_BACKLIGHT)
 extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
 extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
 #endif