diff --git a/doc/installation.md b/doc/installation.md
index 0d19495..4f311c8 100644
--- a/doc/installation.md
+++ b/doc/installation.md
@@ -42,7 +42,9 @@ return [
 ];
 ```
 
-Import routing in your `config/routes.yaml` file:
+Import routing in your `config/routes.yaml` file 
+(may have already been added in the `config/routes/bitbag_sylius_mailchimp_plugin.yaml` file):
+
 ```yaml
 # config/routes.yaml