diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b3bda6c..e933130 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -36,7 +36,8 @@ The Docker Bench has the main script called `docker-bench-security.sh`. This is
 The tests are split in 6 different files:
 
 ```sh
-✗ tests
+✗ tree tests/
+tests/
 ├── 1_host_configuration.sh
 ├── 2_docker_daemon_configuration.sh
 ├── 3_docker_daemon_configuration_files.sh