diff --git a/tools/tools/git/git-arc.1 b/tools/tools/git/git-arc.1
index cc510c069c3a..00019a19180d 100644
--- a/tools/tools/git/git-arc.1
+++ b/tools/tools/git/git-arc.1
@@ -47,7 +47,7 @@
 .Ar branch Op Ar commit Ns | Ns Ar commit-range
 .Nm
 .Cm update
-.Op Ar branch Oo Ar commit Ns | Ns Ar commit-range Oc
+.Op Ar commit Ns | Ns Ar commit-range Oc
 .Sh DESCRIPTION
 The
 .Nm