diff --git a/dev-docs/bidders/adnuntius.md b/dev-docs/bidders/adnuntius.md
index 8d45b21c29..1b235595b6 100644
--- a/dev-docs/bidders/adnuntius.md
+++ b/dev-docs/bidders/adnuntius.md
@@ -26,6 +26,9 @@ sidebarType: 1
 | `network` | optional | Used if you want to make requests to multiple networks in adnuntius. | `'adnuntius'` | `string`|
 | `targeting` | optional | Targeting to be sent through to adnuntius with the request. | `{ c: ['prebids'] }` | `string`|
 | `maxDeals` | optional | The maximum number of deal bids to include. Default 0. | `1` | `Integer` |
+| `bidType` | optional | Whether to use `grossBid` or `netBid` from the server response as the cpm bid. Default is `grossBid`. | `grossBid` | `string` |
+
+The `bidType` can also be set under `config` in the bidderSettings.
 
 #### Targeting