diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index 10f062ea6bc2b4f04e09ca48ab194071da9f298a..8c745c8931da05a5fb57d5a10a5aa4a3cd376a22 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -364,6 +364,7 @@ integral_cutoff
 	accumulates error when temperature is above the desired
 	temperature trip point. For more information see
 	Documentation/thermal/power_allocator.txt
+	Unit: millidegree Celsius
 	RW, Optional
 
 slope