diff --git a/doc/configuration.md b/doc/configuration.md
index c19268d..06bb554 100644
--- a/doc/configuration.md
+++ b/doc/configuration.md
@@ -46,3 +46,5 @@ The `config/version` file contains the version number of the docker images that
 ## The `docker-compose.override.yml` File
 
 If present, the `config/docker-compose.override.yml` file will be included in the invocation to `docker-compose`. This is useful for overriding configuration specific to docker-compose.
+
+See the [docker-compose documentation](https://docs.docker.com/compose/extends/#adding-and-overriding-configuration) for more details.