diff --git a/docs/yml.md b/docs/yml.md
index 6204122fb..a299669cc 100644
--- a/docs/yml.md
+++ b/docs/yml.md
@@ -54,6 +54,11 @@ expose:
 volumes:
  - cache/:/tmp/cache
 
+-- Mount all of the volumes from another service or container
+volumes_from:
+ - service_name
+ - container_name
+
 -- Add environment variables.
 -- Environment variables with only a key are resolved to values on the host 
 -- machine, which can be helpful for secret or host-specific values.