diff --git a/cloud/docker/docker.py b/cloud/docker/docker.py
index 35c5b5be489..71358df54d3 100644
--- a/cloud/docker/docker.py
+++ b/cloud/docker/docker.py
@@ -284,6 +284,7 @@ options:
     default: 0
     version_added: "1.9"
   extra_hosts:
+    version_added: "2.0"
     description:
     - Dict of custom host-to-IP mappings to be defined in the container
   insecure_registry: