diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 5997b5efc1cba..c6559f1535893 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 *
 **********