diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
index 39dc40cf681f015abaea9158348c2c839b990605..b59472c29a40d1c33b2e86565de0d14108253bf0 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
@@ -18,6 +18,7 @@
  * Copyright 2018 David Lechner <david@lechnology.com>
  */
 
+#include <linux/backlight.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>