diff --git a/dev-docs/modules/permutiveRtdProvider.md b/dev-docs/modules/permutiveRtdProvider.md
index 0b5fcee63c..4c6dec2f7d 100644
--- a/dev-docs/modules/permutiveRtdProvider.md
+++ b/dev-docs/modules/permutiveRtdProvider.md
@@ -68,6 +68,7 @@ as well as enabling settings for specific use cases mentioned above (e.g. acbidd
 | params                                         | Object               |                                                                                                | -                                                               |
 | params.acBidders                               | String[]             | An array of bidder codes to share cohorts with in certain versions of Prebid, see below        | `[]`                                                            |
 | params.maxSegs                                 | Integer              | Maximum number of cohorts to be included in either the `permutive` or `p_standard` key-value.  | `500`                                                           |
+| params.bidders                                 | Object               | Per-bidder configuration for custom cohort sources. Keys are bidder codes; listing a bidder here also causes the module to write ortb2 data for that bidder, even if it is not in `acBidders` or on Permutive's SSP list. | `{}`                                                            |
 | params.bidders                                 | Object               | Per-bidder configuration for custom cohort sources. Keys are bidder codes.                     | `{}`                                                            |
 | params.bidders.\<bidder\>.customCohorts        | Object               | Custom cohorts source configuration for a specific bidder.                                     | -                                                               |
 | params.bidders.\<bidder\>.customCohorts.source | String               | Storage type to read custom cohorts from. Currently only `'ls'` (localStorage) is supported.   | -                                                               |