diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 5997b5efc1cbac9e0eda5e70cc7f4854ef5f3744..c6559f15358933cb2ab74a49d70a34ce90e34e91 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -505,6 +505,15 @@ energy[1-*]_input		Cumulative energy use
 				RO
 
 
+************
+* Humidity *
+************
+
+humidity[1-*]_input		Humidity
+				Unit: milli-percent (per cent mille, pcm)
+				RO
+
+
 **********
 * Alarms *
 **********