diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c
index 74d9c51..fbdc765 100644
--- a/drivers/hwmon/adcxx.c
+++ b/drivers/hwmon/adcxx.c
@@ -37,6 +37,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/sysfs.h>