diff --git a/source/plugins/activity/README.md b/source/plugins/activity/README.md
index a8eb474f..22469332 100644
--- a/source/plugins/activity/README.md
+++ b/source/plugins/activity/README.md
@@ -120,7 +120,8 @@
   </tr>
   <tr>
     <td nowrap="nowrap">⏩ Inherits <code>users_ignored</code><br>
-<b>type:</b> <code>undefined</code>
+<b>type:</b> <code>array</code>
+<i>(comma-separated)</i>
 <br></td>
   </tr>
   <tr>
diff --git a/source/plugins/activity/metadata.yml b/source/plugins/activity/metadata.yml
index 80438528..b98bbf5b 100644
--- a/source/plugins/activity/metadata.yml
+++ b/source/plugins/activity/metadata.yml
@@ -68,7 +68,10 @@ inputs:
       Ignored users
 
       Useful to ignore bots activity
+    type: array
+    format: comma-separated
     default: ""
+    example: user1, user2, ...
     inherits: users_ignored
 
   plugin_activity_filter: