diff --git a/tests/behat/README.md b/tests/behat/README.md
index 241e7f1cf6..7872459719 100644
--- a/tests/behat/README.md
+++ b/tests/behat/README.md
@@ -23,6 +23,8 @@ then adapt the following command to the latest version:
 cd /tmp && wget https://chromedriver.storage.googleapis.com/2.34/chromedriver_linux64.zip && unzip chromedriver_linux64.zip && sudo mv chromedriver /usr/local/bin
 ```
 
+- Install google-chrome (stable version, not beta or dev).
+
 ### Chamilo configuration
 
 - An administrator user should be created with these parameters: