diff --git a/docs/operators/handbook.md b/docs/operators/handbook.md
index 72464c6..03cbbb5 100644
--- a/docs/operators/handbook.md
+++ b/docs/operators/handbook.md
@@ -231,7 +231,7 @@ The requirements are:
 wget -O- https://get.docker.com | bash
 
 # add user to docker group
-usermod -aG docker $YOURUSERNAMEHERE
+usermod -aG docker $USER
 
 # setup swarm
 docker swarm init
diff --git a/docs/operators/tutorial.md b/docs/operators/tutorial.md
index e3615da..2e6f7df 100644
--- a/docs/operators/tutorial.md
+++ b/docs/operators/tutorial.md
@@ -109,7 +109,7 @@ You need to keep port `:80` and `:443` free on your server for web proxying to y
 wget -O- https://get.docker.com | bash
 
 # add user to docker group
-usermod -aG docker $YOURUSERNAMEHERE
+usermod -aG docker $USER
 
 # setup swarm
 docker swarm init