diff --git a/transparent-gateway-details.rst b/transparent-gateway-details.rst
index e14d2908d4af083a3a150720ebe45fd6d22b655b..38f66b9327ab4b60d371f5a0a4120afdeeef2280 100644
--- a/transparent-gateway-details.rst
+++ b/transparent-gateway-details.rst
@@ -22,8 +22,16 @@ The current manual process is quite intricated, but expect vast improvements in
 
 .. code-block:: bash
 
-   $ sudo docker pull openthread/environment:latest
-   $ sudo docker run -it --rm openthread/environment bash
+   $ docker pull openthread/environment:latest
+   $ docker run -it --rm openthread/environment bash
+
+   .. note::
+
+      You may receive an error message `permisssion denied`. You can start both 
+      of the commands with `sudo`.
+      If you don’t want to preface the `docker` command with `sudo`, create a Unix group
+      called `docker` and add users to it. When the Docker daemon starts, it creates a 
+      Unix socket accessible by members of the `docker` group. 
 
 - Inside the docker container prepare the build as follows: