diff --git a/README.rst b/README.rst
index 751f817..cbebc44 100644
--- a/README.rst
+++ b/README.rst
@@ -53,7 +53,9 @@ Count the number of submissions that need to be graded::
     }
 
 .. note::
-    By default, ``tutor xqueue submissions`` will hit the Xqueue API running at http(s)://xqueue.LMS_HOST. When running locally, you will want to interact with http://xqueue.localhost. To do so, you should pass the ``--url=http://xqueue.localhost`` option to the CLI.
+    By default, ``tutor xqueue submissions`` will hit the Xqueue API running at http(s)://xqueue.LMS_HOST. When running locally, you will want to interact with http://xqueue.localhost. To do so, you should pass the ``--url=http://xqueue.localhost`` option to the CLI. Alternatively, and to avoid passing this option every time, you can define the following environment variable::
+        
+        export TUTOR_XQUEUE_URL=http://xqueue.localhost
 
 Show the first submission that should be graded::
 
diff --git a/tutorxqueue/__about__.py b/tutorxqueue/__about__.py
index 3ced358..b5fdc75 100644
--- a/tutorxqueue/__about__.py
+++ b/tutorxqueue/__about__.py
@@ -1 +1 @@
-__version__ = "0.2.1"
+__version__ = "0.2.2"
diff --git a/tutorxqueue/plugin.py b/tutorxqueue/plugin.py
index e9935ea..03d779e 100644
--- a/tutorxqueue/plugin.py
+++ b/tutorxqueue/plugin.py
@@ -59,7 +59,8 @@ def command():
 @click.option(
     "-u",
     "--url",
-    help="Xqueue server base url. By default, this value will be defined from the plugin configuration.",
+    envvar="TUTOR_XQUEUE_URL",
+    help="Xqueue server base url. By default, this value will be defined from the plugin configuration. Alternatively, this value can be defined from the TUTOR_XQUEUE_URL environment variable.",
 )
 def submissions(context, queue, url):
     context.queue = queue