diff --git a/api-ref/source/v3/domains.inc b/api-ref/source/v3/domains.inc
index 0da7f40d04..3fce064f51 100644
--- a/api-ref/source/v3/domains.inc
+++ b/api-ref/source/v3/domains.inc
@@ -99,6 +99,7 @@ Parameters
 .. rest_parameters:: parameters.yaml
 
    - domain: domain
+   - explicit_domain_id: request_explicit_domain_id_body_not_required
    - enabled: domain_enabled_request_body
    - description: domain_description_request_body
    - name: domain_name_request_body
diff --git a/api-ref/source/v3/parameters.yaml b/api-ref/source/v3/parameters.yaml
index 683b41ef9b..21e14dec68 100644
--- a/api-ref/source/v3/parameters.yaml
+++ b/api-ref/source/v3/parameters.yaml
@@ -1721,6 +1721,15 @@ request_domain_options_body_not_required:
   in: body
   required: false
   type: object
+request_explicit_domain_id_body_not_required:
+  description: |
+    The ID of the domain. A domain created this way will not use an
+    auto-generated ID, but will use the ID passed in instead. Identifiers passed
+    in this way must conform to the existing ID generation scheme: UUID4 without
+    dashes.
+  in: body
+  required: false
+  type: string
 request_limit_domain_id_not_required:
   description: |
     The name of the domain.