diff --git a/README.md b/README.md
index 91e6df4..4a410ae 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ KANBOARD_CACHE_DRIVER=memory
 KANBOARD_MAIL_CONFIGURATION=true
 KANBOARD_MAIL_FROM=
 KANBOARD_MAIL_TRANSPORT=mail
-KANBOARD_MAIL_SMTP_HOSTNAME
+KANBOARD_MAIL_SMTP_HOSTNAME=
 KANBOARD_MAIL_SMTP_PORT=25
 KANBOARD_MAIL_SMTP_USERNAME=
 KANBOARD_MAIL_SMTP_PASSWORD=
@@ -73,7 +73,7 @@ KANBOARD_DB_SSL_CA=null
 KANBOARD_DB_VERIFY_SERVER_CERT=null
 KANBOARD_DB_TIMEOUT=null
 KANBOARD_LDAP_AUTH=false
-KANBOARD_LDAP_SERVER
+KANBOARD_LDAP_SERVER=
 KANBOARD_LDAP_PORT=389
 KANBOARD_LDAP_SSL_VERIFY=true
 KANBOARD_LDAP_START_TLS=false