diff --git a/doc/lp-project-upload.1 b/doc/lp-project-upload.1
index fe0fa1c..16ade9f 100644
--- a/doc/lp-project-upload.1
+++ b/doc/lp-project-upload.1
@@ -4,7 +4,7 @@ lp\-project\-upload \- Upload a release tarball to a Launchpad project.
 
 .SH SYNOPSIS
 .B lp\-project\-upload
-.I project-name version tarball
+.I project-name version tarball [new milestone]
 
 .SH DESCRIPTION
 \fBlp\-project\-upload\fR uploads a tarball release of a project to Launchpad.