diff --git a/bench.sh b/bench.sh
index 3fb19e6a0b..1575aca4b2 100755
--- a/bench.sh
+++ b/bench.sh
@@ -1,7 +1,9 @@
 branch="alex/benching"
-echo $(git rev-list --since="1 week ago" $branch)
-for commit in $(git rev-list --since="1 week ago" $branch)
-do
-  echo "benching commit" . $commit
-  cargo criterion --history-id $commit
-done
+commit_one_week_ago=$(git rev-list -n 1 --before="1 week ago" $branch)
+latest_commit=$(git rev-list -n 1 HEAD)
+
+echo "benching commit $commit_one_week_ago"
+cargo criterion --history-id $commit_one_week_ago
+
+echo "benching commit $latest_commit"
+cargo criterion --history-id $latest_commit