diff --git a/README.md b/README.md
index 7f94bb6..2cf9365 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ You can open a shell session with the following command:
 Your computer `/etc/hosts` file must be configured in order to resolve the name of your container. You can do it by running the following command:
 
 ```sh
-echo `./.bbb/ip-bbb-dev-01.sh | xargs -n 1 echo -n`" bbb-dev-01.test." | sudo tee /etc/hosts
+echo `./.bbb/ip-bbb-dev-01.sh | xargs -n 1 echo -n`" bbb-dev-01.test." | sudo tee -a /etc/hosts
 ```
 
 ## Running HTML5 from source code