diff --git a/roles/mariadb_server/tasks/main.yml b/roles/mariadb_server/tasks/main.yml
index 084199d4f0..e92e2e2ce1 100644
--- a/roles/mariadb_server/tasks/main.yml
+++ b/roles/mariadb_server/tasks/main.yml
@@ -69,3 +69,6 @@
   tags:
   - cron
   - mariadb-server
+
+- name: set domain_can_mmap_files so collectd and nagios work
+  seboolean: name=domain_can_mmap_files state=yes persistent=yes