diff --git a/elements/puppet-stack-config/puppet-stack-config.pp b/elements/puppet-stack-config/puppet-stack-config.pp
index 3f8862b94..0727b99ec 100644
--- a/elements/puppet-stack-config/puppet-stack-config.pp
+++ b/elements/puppet-stack-config/puppet-stack-config.pp
@@ -572,6 +572,7 @@ include ::mistral::api
 include ::mistral::engine
 include ::mistral::executor
 include ::mistral::cors
+include ::mistral::cron_trigger
 
 # ensure TripleO common entrypoints for custom Mistral actions
 # are installed before performing the Mistral action population
diff --git a/elements/puppet-stack-config/puppet-stack-config.yaml.template b/elements/puppet-stack-config/puppet-stack-config.yaml.template
index e9e65dbe1..d762661c4 100644
--- a/elements/puppet-stack-config/puppet-stack-config.yaml.template
+++ b/elements/puppet-stack-config/puppet-stack-config.yaml.template
@@ -647,6 +647,7 @@ mistral::rabbit_host: "{{LOCAL_IP_WRAPPED}}"
 mistral::database_connection: mysql+pymysql://mistral:{{UNDERCLOUD_MISTRAL_PASSWORD}}@{{LOCAL_IP_WRAPPED}}/mistral
 mistral::rpc_backend: rabbit
 mistral::rpc_response_timeout: 120
+mistral::cron_trigger::execution_interval: 600
 mistral::keystone::authtoken::password: {{UNDERCLOUD_MISTRAL_PASSWORD}}
 mistral::keystone::authtoken::auth_uri: "%{hiera('keystone_auth_uri')}"
 mistral::keystone::authtoken::auth_url: "%{hiera('keystone_identity_uri')}"
diff --git a/releasenotes/notes/mistral_cron_trigger_subsystem_interval-fdacb60599948e91.yaml b/releasenotes/notes/mistral_cron_trigger_subsystem_interval-fdacb60599948e91.yaml
new file mode 100644
index 000000000..3d8fc018c
--- /dev/null
+++ b/releasenotes/notes/mistral_cron_trigger_subsystem_interval-fdacb60599948e91.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    If you had cron triggers for Mistral in the undercloud, they will now only
+    execute at most every 10 minutes. Previously they could run as frequently
+    as every second.