diff --git a/manifests/api.pp b/manifests/api.pp
index 6ea09e8..65e77a1 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -18,6 +18,7 @@ class openstack_health::api(
   $elastic_recheck_dir = '/opt/elastic-recheck',
   $elastic_recheck_repo = 'https://git.openstack.org/openstack-infra/elastic-recheck',
   $elastic_recheck_revision = 'master',
+  $cache_expiration = 900,
 ) {
 
   include ::httpd::mod::wsgi
diff --git a/templates/openstack-health.conf.erb b/templates/openstack-health.conf.erb
index 12aec86..c54c0c1 100644
--- a/templates/openstack-health.conf.erb
+++ b/templates/openstack-health.conf.erb
@@ -1,5 +1,6 @@
 [default]
 query_dir = <%= @elastic_recheck_dir %>/queries
+cache_expiration = <%= @cache_expiration %>
 db_uri = <%= scope.lookupvar("openstack_health::api::db_uri") %>
 <% if @ignored_keys.length > 0 -%>
 ignored_run_metadata_keys =