diff --git a/alerta.conf.tmpl b/alerta.conf.tmpl
index d1b1249..a8fe370 100644
--- a/alerta.conf.tmpl
+++ b/alerta.conf.tmpl
@@ -8,7 +8,7 @@ timezone = Europe/London
 
 [alerta-mailer]
 amqp_topic = notify
-amqp_url = "mongodb://{{ env "DB_HOST" }}/{{ env "DB_NAME" }}"
+amqp_url = mongodb://{{ env "DB_HOST" }}/{{ env "DB_NAME" }}
 config_file = /app/alerta.conf
 dashboard_url = https://{{ env "DOMAIN" }}
 debug = {{ env "DEBUG" }}