diff --git a/templates/shinyproxy-2-conf.yml.j2 b/templates/shinyproxy-2-conf.yml.j2
index 90aaa91..7f70d17 100644
--- a/templates/shinyproxy-2-conf.yml.j2
+++ b/templates/shinyproxy-2-conf.yml.j2
@@ -93,7 +93,7 @@ proxy:
 {% if shinyproxy_version is version_compare('2.6.0', '>=') %}
 
     stop-on-logout: {{ app.stop_on_logout | default('true') }}
-    max-lifetime: {{ app.max-lifetime | default(shinyproxy_default_proxy_max_lifetime) }}
+    max-lifetime: {{ app.max_lifetime | default(shinyproxy_default_proxy_max_lifetime) }}
 
 {% endif %}