diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
index 3445ce1..9e77571 100644
--- a/drivers/hwmon/adt7470.c
+++ b/drivers/hwmon/adt7470.c
@@ -29,6 +29,7 @@
 #include <linux/delay.h>
 #include <linux/log2.h>
 #include <linux/kthread.h>
+#include <linux/slab.h>
 
 /* Addresses to scan */
 static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };