diff --git a/postfix-relay/meta/main.yml b/postfix-relay/meta/main.yml
new file mode 100644
index 0000000..51ba52d
--- /dev/null
+++ b/postfix-relay/meta/main.yml
@@ -0,0 +1,3 @@
+---
+dependencies:
+  - { role: '../../library/roles/nagios', when: nagios_enabled is defined and nagios_enabled }