diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt
index 043ff5114..32cb13fae 100644
--- a/Documentation/git-rev-list.txt
+++ b/Documentation/git-rev-list.txt
@@ -22,6 +22,7 @@ SYNOPSIS
 	     [ \--stdin ]
 	     [ \--topo-order ]
 	     [ \--parents ]
+	     [ \--timestamp ]
 	     [ \--left-right ]
 	     [ \--cherry-pick ]
 	     [ \--encoding[=<encoding>] ]
@@ -117,6 +118,9 @@ e.g. "2 hours ago".
 
 	Print the parents of the commit.
 
+--timestamp::
+	Print the raw commit timestamp.
+
 --left-right::
 
 	Mark which side of a symmetric diff a commit is reachable from.