diff --git a/docker-cloud/builds/advanced.md b/docker-cloud/builds/advanced.md
index 44162660fb..835bdc2e12 100644
--- a/docker-cloud/builds/advanced.md
+++ b/docker-cloud/builds/advanced.md
@@ -19,8 +19,8 @@ processes and do not affect your service's run environment.
 * `SOURCE_COMMIT`: the SHA1 hash of the commit being tested.
 * `COMMIT_MSG`: the message from the commit being tested and built.
 * `DOCKER_REPO`: the name of the Docker repository being built.
-* `DOCKER_TAG`: the Docker repository tag being built.
-* `IMAGE_NAME`: the name and tag of the Docker repository being built. (This variable is a combination of `DOCKER_REPO`:`DOCKER_TAG`.)
+* `CACHE_TAG`: the Docker repository tag being built.
+* `IMAGE_NAME`: the name and tag of the Docker repository being built. (This variable is a combination of `DOCKER_REPO`:`CACHE_TAG`.)
 
 If you are using these build environment variables in a
 `docker-compose.test.yml` file for automated testing, declare them in your `sut`