diff --git a/Install-Tracks-2.5.1-on-Ubuntu-20.04-LTS-on-AWS-with-SSL-support.md b/Install-Tracks-2.5.1-on-Ubuntu-20.04-LTS-on-AWS-with-SSL-support.md
index c2334b5..09a4c06 100644
--- a/Install-Tracks-2.5.1-on-Ubuntu-20.04-LTS-on-AWS-with-SSL-support.md
+++ b/Install-Tracks-2.5.1-on-Ubuntu-20.04-LTS-on-AWS-with-SSL-support.md
@@ -95,7 +95,7 @@ We will be installing all Ruby packages into this local folder for not messing u
 ```bash
 $ bundle config set --local path 'vendor/bundle'
 $ export RAILS_SERVE_STATIC_FILES=true
-$ bundle install --without=mysql,postgresql # Edit per your needs
+$ bundle install --without=mysql --without=postgresql # Edit per your needs
 ```
 
 Compile static assets