diff --git a/README.md b/README.md
index c780919..32742b7 100644
--- a/README.md
+++ b/README.md
@@ -98,9 +98,10 @@ hyperfine \
     'rails runner true'
 ```
 
-Make sure your working tree is clean before switching branches. If you want to benchmark
-uncommitted changes, consider using `git worktree` and benchmarking the same command in each
-worktree instead.
+Make sure your working tree is clean before switching branches. Because this `--setup` command
+changes the checkout, the repository will remain on the last branch from `--parameter-list`
+after the benchmark finishes. If you want to benchmark uncommitted changes, consider using
+`git worktree` and benchmarking the same command in each worktree instead.
 
 ### Intermediate shell