diff --git a/lib/ansible/modules/cloud/docker/docker.py b/lib/ansible/modules/cloud/docker/docker.py
index 58cc5fdc82c..8491a56dcf5 100644
--- a/lib/ansible/modules/cloud/docker/docker.py
+++ b/lib/ansible/modules/cloud/docker/docker.py
@@ -1041,7 +1041,7 @@ class DockerManager(object):
                 self.module.fail_json(msg=str(e))
 
             #For v1.19 API and above use HostConfig, otherwise use Config
-            if docker_api_version >= 1.19:
+            if api_version >= 1.19:
                 actual_mem = container['HostConfig']['Memory']
             else:
                 actual_mem = container['Config']['Memory']