diff --git a/tools/tools/git/git-arc.sh b/tools/tools/git/git-arc.sh
--- a/tools/tools/git/git-arc.sh
+++ b/tools/tools/git/git-arc.sh
@@ -683,7 +683,7 @@
             # XXX this leaves an extra newline in some cases.
             reviewers=$(diff2reviewers "$diff" | sed '/^$/d' | paste -sd ',' - | sed 's/,/, /g')
             if [ -n "$reviewers" ]; then
-                printf "Reviewed by:\t%s\n" "${reviewers}" >> "$tmp"
+                printf "Reviewed by:\t\t%s\n" "${reviewers}" >> "$tmp"
             fi
             printf "Differential Revision:\thttps://reviews.freebsd.org/%s" "${diff}" >> "$tmp"
         fi