diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c
index 3cedd4c407af..2adbeaed4c04 100644
--- a/arch/arm/plat-samsung/dev-backlight.c
+++ b/arch/arm/plat-samsung/dev-backlight.c
@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/pwm_backlight.h>
+#include <linux/slab.h>
 
 #include <plat/devs.h>
 #include <plat/gpio-cfg.h>