diff --git a/README.md b/README.md
index e3577a8fc..aa4c947c0 100644
--- a/README.md
+++ b/README.md
@@ -538,6 +538,7 @@ If you want to try it, you can visit [this fab-manager](https://fablab.lacasemat
 To start using this awesome feature, there are a few steps:
 - send a mail to **contact@fab-manager.com** asking for your Open Projects client's credentials and giving them the name of your fab-manager, they will give you an `OPENLAB_APP_ID` and an `OPENLAB_APP_SECRET`
 - fill in the value of the keys in your `application.yml`
+- make sur you have an environment variable called OPENLAB_BASE_URI set to 'https://openprojects.fab-manager.com'
 - start your fab-manager app
 - export your projects to open-projects (if you already have projects created on your fab-manager, unless you can skip that part) executing this command: `bundle exec rake fablab:openlab:bulk_export`
 
@@ -580,7 +581,7 @@ Go to your projects gallery and enjoy seeing your projects available from everyw
         ALTER ROLE sleede WITH SUPERUSER;
 
  DO NOT do this in a production environment, as this would lead to a serious security issue.
- 
+
 - Using another DBMS than PostgreSQL is not supported, because of some PostgreSQL specific instructions:
   - `app/controllers/api/members_controllers.rb@list` is using `ILIKE`
   - `app/controllers/api/invoices_controllers.rb@list` is using `ILIKE` and `date_trunc()`