diff --git a/README.md b/README.md
index 555d13a..8e3c22b 100644
--- a/README.md
+++ b/README.md
@@ -11,4 +11,4 @@ A docker image for Gitea ci test
 
 In order to run from within a development environment at the root of the gitea repository with a command such as `docker run --volume $(pwd):/drone/src --workdir /drone/src --user gitea mytestenv ...` the id of the gitea user must match the id of the development environment.
 
-- docker build --tag mytestenv --build-arg GITEA_ID=$(id -u) --build-arg GITEA_GID=$(id -g) .
+- `docker build --tag mytestenv --build-arg GITEA_ID=$(id -u) --build-arg GITEA_GID=$(id -g) .`