diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index c74b1d9..56dbcfb 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/dmi.h>
 #include <linux/jiffies.h>
+#include <linux/err.h>
 
 #include <acpi/acpi.h>
 #include <acpi/acpixf.h>