diff --git a/codebuds/mattermost-publication-bundle/0.3/config/packages/mattermost_publication.yaml b/codebuds/mattermost-publication-bundle/0.3/config/packages/mattermost_publication.yaml
index d451ed16..fc24d3d8 100644
--- a/codebuds/mattermost-publication-bundle/0.3/config/packages/mattermost_publication.yaml
+++ b/codebuds/mattermost-publication-bundle/0.3/config/packages/mattermost_publication.yaml
@@ -1,5 +1,5 @@
 mattermost_publication:
     webhook_url: '%env(MATTERMOST_WEBHOOK_URL)%'
-    channel: null
-    username: null
-    icon_url: null
+    # You can also set the default channel, username and icon_url
+    # for more information you can checkout the bundle documentation
+    # https://github.com/codebuds33/mattermost-publication-bundle/blob/master/README.md