diff --git a/t/perf/p2000-sparse-operations.sh b/t/perf/p2000-sparse-operations.sh
index af0be1e52b2eea..85a89f7a04a888 100755
--- a/t/perf/p2000-sparse-operations.sh
+++ b/t/perf/p2000-sparse-operations.sh
@@ -113,6 +113,7 @@ test_perf_on_all git checkout -f -
 test_perf_on_all git reset
 test_perf_on_all git reset --hard
 test_perf_on_all git reset -- does-not-exist
+test_perf_on_all git checkout-index -f --all
 test_perf_on_all git update-index --add --remove
 test_perf_on_all git diff
 test_perf_on_all git diff --staged