diff --git a/pipeline/inputs/docker-metrics.md b/pipeline/inputs/docker-metrics.md
index ce044604e..23c8d2128 100644
--- a/pipeline/inputs/docker-metrics.md
+++ b/pipeline/inputs/docker-metrics.md
@@ -16,6 +16,7 @@ The plugin supports the following configuration parameters:
 | Include      | A space-separated list of containers to include |         |
 | Exclude      | A space-separated list of containers to exclude |         |
 | Threaded | Indicates whether to run this input in its own [thread](../../administration/multithreading.md#inputs). | `false` |
+| path.containers | Used to specify the container directory if Docker is configured with a custom "data-root" directory. | `/var/lib/docker/containers` |
 
 If you set neither `Include` nor `Exclude`, the plugin will try to get metrics from _all_ the running containers.