diff --git a/docs/installing.rst b/docs/installing.rst
index 31fa9f9..16453de 100644
--- a/docs/installing.rst
+++ b/docs/installing.rst
@@ -57,7 +57,7 @@ recipes.
 Configuration
 -------------
 
-When launching Humulus, you must point an environment variables,
+When launching Humulus, you must point an environment variable,
 ``HUMULUS_SETTINGS``, to a python file containing configuration variables.
 
 The following variables must be defined:
@@ -147,3 +147,18 @@ GitHub and then writes the data to the Couch database.
     flask import-styles
 
 .. _`styleguide.xml`: https://github.com/meanphil/bjcp-guidelines-2015/blob/master/styleguide.xml
+
+Commands in Docker
+^^^^^^^^^^^^^^^^^^
+
+If you're running Humulus using `Docker`_ (the recommended way), you can
+execute the commands inside the docker container:
+
+::
+
+    sudo docker exec -it \
+      -e HUMULUS_SETTINGS=/app/settings.py -e FLASK_APP=humulus humulus \
+      flask build-couch
+    sudo docker exec -it \
+      -e HUMULUS_SETTINGS=/app/settings.py -e FLASK_APP=humulus humulus \
+      flask import-styles