diff --git a/extras/profiling/README.md b/extras/profiling/README.md
index 6a03c032..087ab5bc 100644
--- a/extras/profiling/README.md
+++ b/extras/profiling/README.md
@@ -30,3 +30,5 @@ If your `master` branch is not up-to-date, you can get a fresh clone by passing
 
 You can customize these branches by passing `--local-repo`/`--target-branch`, and customize the repos by passing `--local-repo`/`--target-repo` (can
 either take a URL or a path).
+
+If you want to run a third enviroment with additional dependencies (such as `pyOpenSSL`), you can pass `--complex`.