diff --git a/websitev2/docs/addons/slack.md b/websitev2/docs/addons/slack.md
index a016da9708..9c473661e3 100644
--- a/websitev2/docs/addons/slack.md
+++ b/websitev2/docs/addons/slack.md
@@ -7,7 +7,7 @@ title: Slack
 
 The Slack addon allows Unleash to post Updates when a feature toggle is updated. To set up Slack, you need to configure an incoming Slack webhook URL. You can follow [Sending messages using Incoming Webhooks](https://api.slack.com/incoming-webhooks) on how to do that. You can also choose to [create a slack app for Unleash](https://api.slack.com/apps), which will provide you with additional functionality to control how Unleash communicates messages on your Slack workspace.
 
-The Slack addon will perform a single retry if the HTTP POST against the Slack Webhook URL fails (either a 50x or network error). Duplicate events may happen,m and you should never assume events always comes in order.
+The Slack addon will perform a single retry if the HTTP POST against the Slack Webhook URL fails (either a 50x or network error). Duplicate events may happen. You should never assume events always comes in order.
 
 ## Configuration {#configuration}
 
@@ -31,6 +31,10 @@ Unleash Slack addon takes the following parameters.
 - **Emoji Icon** - Used to override the emoji icon used to post the update to a Slack channel.
 - Default channel - Where to post the message if the feature toggles has not overridden the channel via the slack tags.
 
+#### Global configuration
+
+- **Unleash URL** - The slack plugin uses the `server.unleashUrl` property to create the link back to Unleash in the posts. This can be set using the **UNLEASH_URL** environment variable or the `server.unleashUrl` property when starting the server from node.
+
 #### Tags {#tags}
 
 The Slack addon also defined the Tag type "slack". You may use this tag to override which Slack channel Unleash should post updates to for this feature toggle.