diff --git a/conf/systemd.service b/conf/systemd.service
index 5739658..d57d422 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -22,8 +22,8 @@ Environment=ADMIN_PASS=__PASSWORD__
 Environment=ADMIN_EMAIL=__EMAIL__
 Environment=OVERWRITE_SETTING_Show_Setup_Wizard=completed
 
-Environment=LDAP_Enable:1
-Environment=LDAP_BaseDN:ou=users,dc=yunohost,dc=org
+Environment=OVERWRITE_SETTING_LDAP_Enable:1
+Environment=OVERWRITE_SETTING_LDAP_BaseDN:ou=users,dc=yunohost,dc=org
 Environment=LDAP_Host:localhost
 Environment=LDAP_Reconnect:1
 Environment=LDAP_Port:389
@@ -35,11 +35,9 @@ Environment=LDAP_User_Search_Scope:sub
 Environment=LDAP_User_Search_Field:uid
 Environment=LDAP_Accounts_RegistrationForm:1
 
-Environment=SMTP_Host:localhost
-Environment=SMTP_Port:25
-#Environment=SMTP_Username:
-#Environment=SMTP_Password:
-Environment=From_Email:rocketchat@__DOMAIN__
+Environment=OVERWRITE_SETTING_SMTP_Host:localhost
+Environment=OVERWRITE_SETTING_SMTP_Port:25
+Environment=OVERWRITE_SETTING_From_Email:rocketchat@__DOMAIN__
 
 [Install]
 WantedBy=multi-user.target