diff --git a/lib/ansible/modules/cloud/docker/docker.py b/lib/ansible/modules/cloud/docker/docker.py
index 007018e45b7..2a7cd27205b 100644
--- a/lib/ansible/modules/cloud/docker/docker.py
+++ b/lib/ansible/modules/cloud/docker/docker.py
@@ -205,9 +205,9 @@ options:
     description:
       - Set the PID namespace mode for the container (currently only supports 'host'). Requires docker-py >= 1.0.0 and docker >= 1.4.1.
     required: false
-    default: false
+    default: None
     aliases: []
-    version_added: "1.8"
+    version_added: "1.9"
   registry:
     description:
     - Remote registry URL to pull images from.