diff --git a/dev-docs/bidders/adbutler.md b/dev-docs/bidders/adbutler.md
index 6cfe2d661b..bca389de36 100644
--- a/dev-docs/bidders/adbutler.md
+++ b/dev-docs/bidders/adbutler.md
@@ -10,10 +10,11 @@ biddercode: adbutler
 ### Bid Params
 
 {: .table .table-bordered .table-striped }
-| Name        | Scope    | Description                          | Example          | Type     |
-|-------------|----------|--------------------------------------|------------------|----------|
-| `accountID` | required | Account ID                           | `'167283'`       | `string` |
-| `zoneID`    | required | Zone ID                              | `'210093'`       | `string` |
-| `keyword`   | optional | Keyword(s) used for custom targeting | `'green,orange'` | `string` |
-| `minCPM`    | optional | Minimum CPM value to accept          | `'1.00'`         | `string` |
-| `maxCPM`    | optional | Maximum CPM value to accept          | `'5.00'`         | `string` |
+| Name        | Scope    | Description                                          | Example          | Type     |
+|-------------|----------|------------------------------------------------------|------------------|----------|
+| `accountID` | required | Account ID                                           | `'167283'`       | `string` |
+| `zoneID`    | required | Zone ID                                              | `'210093'`       | `string` |
+| `keyword`   | optional | Keyword(s) used for custom targeting                 | `'green,orange'` | `string` |
+| `minCPM`    | optional | Minimum CPM value to accept                          | `'1.00'`         | `string` |
+| `maxCPM`    | optional | Maximum CPM value to accept                          | `'5.00'`         | `string` |
+| `extra`     | optional | Pass other AdButler parameters like 'tuid' or 'kw'   | `{kw: "green"}`  | `object` |