diff --git a/conf/dendrite.yaml b/conf/dendrite.yaml
index 6f7da7a..d9ad595 100644
--- a/conf/dendrite.yaml
+++ b/conf/dendrite.yaml
@@ -173,7 +173,7 @@ client_api:
   # Whether to require reCAPTCHA for registration. If you have enabled registration
   # then this is HIGHLY RECOMMENDED to reduce the risk of your homeserver being used
   # for coordinated spam attacks.
-  enable_registration_captcha: __ENABLE_REGISTRATION_CAPTCHA
+  enable_registration_captcha: __ENABLE_REGISTRATION_CAPTCHA__
 
   # Settings for ReCAPTCHA.
   recaptcha_public_key: ""
diff --git a/scripts/config b/scripts/config
index a4d62c3..e7991f5 100644
--- a/scripts/config
+++ b/scripts/config
@@ -14,6 +14,7 @@ ynh_abort_if_errors
 
 get_registration_disabled() {
     registration_disabled=$(ynh_app_setting_get --app $app --key registration_disabled)
+    domain=$(ynh_app_setting_get --app $app --key domain)
     echo "${registration_disabled}"
 }
 
@@ -27,6 +28,7 @@ set__registration_disabled() {
 
     ynh_write_var_in_file --file=$install_dir/dendrite.yaml --key=registration_disabled --value="${registration_disabled}" 
     ynh_add_systemd_config
+    ynh_systemd_action --service_name=$app --action="restart" --line_match="Starting external listener" --log_path="systemd"
     ynh_app_setting_set --app=$app --key=registration_disabled --value=$registration_disabled
 }
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index d4f82be..53c1ec2 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -52,7 +52,6 @@ enable_registration_captcha=$(ynh_app_setting_get --app=$app --key=enable_regist
 #=================================================
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
-ynh_app_setting_delete --app=$app --key=domain
 
 # Define $server_name if not already defined
 if [ -z $server_name ]; then