diff --git a/defaults/main.yml b/defaults/main.yml
index 20d087f058b8f2cc667c916edf717a7a523af935..b4fe083644e09d5db62d6074b4dd6c39094f27db 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -21,3 +21,5 @@ mongodb:
   backup:
     enable: true
     keep_days: 2
+  replicaset: {}
+  user: {}