diff --git a/lib/ansible/modules/system/puppet.py b/lib/ansible/modules/system/puppet.py
index 2a26f8885af..75ddf5ef54d 100644
--- a/lib/ansible/modules/system/puppet.py
+++ b/lib/ansible/modules/system/puppet.py
@@ -162,7 +162,7 @@ def main():
             show_diff=dict(
                 # internal code to work with --diff, do not use
                 default=False, aliases=['show-diff'], type='bool'),
-            facts=dict(default=None),
+            facts=dict(default=None, type='dict'),
             facter_basename=dict(default='ansible'),
             environment=dict(required=False, default=None),
             certname=dict(required=False, default=None),