diff --git a/lib/ansible/modules/extras/database/misc/mongodb_user.py b/lib/ansible/modules/extras/database/misc/mongodb_user.py
index 088a1de2bb..979bf66cc9 100644
--- a/lib/ansible/modules/extras/database/misc/mongodb_user.py
+++ b/lib/ansible/modules/extras/database/misc/mongodb_user.py
@@ -218,7 +218,7 @@ def main():
             database=dict(required=True, aliases=['db']),
             name=dict(required=True, aliases=['user']),
             password=dict(aliases=['pass']),
-            ssl=dict(default=False),
+            ssl=dict(default=False, type='bool'),
             roles=dict(default=None, type='list'),
             state=dict(default='present', choices=['absent', 'present']),
             update_password=dict(default="always", choices=["always", "on_create"]),