diff --git a/r/container.html.markdown b/r/container.html.markdown
index 8065a998..dd39a34f 100644
--- a/r/container.html.markdown
+++ b/r/container.html.markdown
@@ -57,7 +57,7 @@ The following arguments are supported:
   kept running. If false, then as long as the container exists, Terraform
   assumes it is successful.
 * `ports` - (Optional) See [Ports](#ports) below for details.
-* `extra_hosts` - (Optional) See [Extra Hosts](#extra_hosts) below for details.
+* `host_entry` - (Optional) See [Extra Hosts](#extra_hosts) below for details.
 * `privileged` - (Optional, bool) Run container in privileged mode.
 * `publish_all_ports` - (Optional, bool) Publish all ports of the container.
 * `volumes` - (Optional) See [Volumes](#volumes) below for details.
@@ -88,13 +88,16 @@ the following:
 <a id="extra_hosts"></a>
 ## Extra Hosts
 
-`extra_hosts` is a block within the configuration that can be repeated to specify
-the extra host mappings for the container. Each `extra_hosts` block supports
+`host_entry` is a block within the configuration that can be repeated to specify
+the extra host mappings for the container. Each `host_entry` block supports
 the following:
 
 * `host` - (Required, int) Hostname to add.
 * `ip` - (Required, int) IP address this hostname should resolve to..
 
+This is equivalent to using the `--add-host` option when using the `run`
+command of the Docker CLI.
+
 <a id="volumes"></a>
 ## Volumes