diff --git a/plugins/docker/index.py b/plugins/docker/index.py
index 65771abf6..236ae60eb 100755
--- a/plugins/docker/index.py
+++ b/plugins/docker/index.py
@@ -304,7 +304,7 @@ def dockerLogout():
     registry = args['registry']
     if registry == "docker.io":
         registry = ""
-        login_test = mw.execShell('docker logout %s' % get.registry)
+        login_test = mw.execShell('docker logout %s' % registry)
         if registry == "":
             registry = "docker.io"
         ret = 'required$|Error'