diff --git a/scripts/install b/scripts/install
index 618abc5..e8baf4c 100644
--- a/scripts/install
+++ b/scripts/install
@@ -231,7 +231,7 @@ ynh_script_progression --message="Sending a readme for the admin..." --weight=1
 
 message="CryptPad was successfully installed :)
 
-We have added a sandbox domain for you but you still need to configure your DNS and generate Let's Encrypt Certificates for it.
+We have added a sandbox domain : $sandboxdomain for you but you still need to configure your DNS and generate Let's Encrypt Certificates for it.
 
 Then you can please open your $app domain: https://$domain$path_url
 Once CryptPad is installed, create an account via the Sign Up button on the home page which will take you to the Register page.