diff --git a/tools/tools/git/git-arc.1 b/tools/tools/git/git-arc.1
--- a/tools/tools/git/git-arc.1
+++ b/tools/tools/git/git-arc.1
@@ -24,7 +24,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd November 7, 2022
+.Dd May 5, 2023
 .Dt GIT-ARC 1
 .Os
 .Sh NAME
@@ -77,7 +77,7 @@
 .It Fl r Ar reviewer
 Add one or more reviewers, separated by commas, to revision(s) being created.
 Argument(s) must be existing Phabricator user or group.
-.It Fl r Ar subscriber
+.It Fl s Ar subscriber
 Add one or more subscribers, separated by commas, to revision(s) being created.
 Each argument must be an existing Phabricator user or group.
 .It Fl p Ar parent