diff --git a/roles/mongodb/tasks/main.yml b/roles/mongodb/tasks/main.yml
index 41c12a2..828356c 100644
--- a/roles/mongodb/tasks/main.yml
+++ b/roles/mongodb/tasks/main.yml
@@ -86,7 +86,7 @@
   ansible.builtin.file:
     path: /etc/mongod
     state: directory
-    mode: 0750
+    mode: "0750"
     owner: root
     group: mongod