diff --git a/tasks/install.yml b/tasks/install.yml
index e3b4e93..bb50824 100644
--- a/tasks/install.yml
+++ b/tasks/install.yml
@@ -69,3 +69,9 @@
       enabled: yes
   become: True
   become_user: root
+
+- name: Check where admin user already exists
+  command: |
+    mongo --quiet -u {{ mongodb_user_admin_name }} -p {{ mongodb_user_admin_password }} --eval 'db.version()' admin
+  register: __mongodb_admin_check
+  changed_when: False
diff --git a/tasks/main.yml b/tasks/main.yml
index 27e0a37..97594ac 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,3 +1,4 @@
 ---
 - include_tasks: install.yml
 - include_tasks: auth.yml
+  when: not __mongodb_admin_check == '0'