diff --git a/i3lock.1 b/i3lock.1
index 3111749..8bc00f5 100644
--- a/i3lock.1
+++ b/i3lock.1
@@ -26,6 +26,7 @@ i3lock \- improved screen locker
 .RB [\|\-t\|]
 .RB [\|\-p
 .IR pointer\|]
+.RB [\|\-u\|]
 
 .SH DESCRIPTION
 .B i3lock