diff --git a/lib/onc_certification_g10_test_kit/authorization_request_builder.rb b/lib/onc_certification_g10_test_kit/authorization_request_builder.rb
index 9b1695ca..0835f6f4 100644
--- a/lib/onc_certification_g10_test_kit/authorization_request_builder.rb
+++ b/lib/onc_certification_g10_test_kit/authorization_request_builder.rb
@@ -25,7 +25,7 @@ def initialize(
       client_assertion_type: 'urn:ietf:params:oauth:client-assertion-type:jwt-bearer',
       exp: 5.minutes.from_now,
       jti: SecureRandom.hex(32),
-      kid:
+      kid: nil
     )
       @encryption_method = encryption_method
       @scope = scope
diff --git a/lib/onc_certification_g10_test_kit/bulk_data_authorization.rb b/lib/onc_certification_g10_test_kit/bulk_data_authorization.rb
index 24a27dcf..033e9533 100644
--- a/lib/onc_certification_g10_test_kit/bulk_data_authorization.rb
+++ b/lib/onc_certification_g10_test_kit/bulk_data_authorization.rb
@@ -41,7 +41,10 @@ class BulkDataAuthorization < Inferno::TestGroup
           }
     input :bulk_jwks_kid,
           title: 'Bulk Data JWKS kid',
-          description: 'The key ID of the JWKS private key to use for signing the client assertion when fetching an auth token. Defaults to the first JWK in the list if no kid is supplied.',
+          description: <<~DESCRIPTION,
+            The key ID of the JWKS private key to use for signing the client assertion when fetching an auth token.
+            Defaults to the first JWK in the list if no kid is supplied.
+          DESCRIPTION
           optional: true
     output :bearer_token
 
@@ -161,7 +164,8 @@ class BulkDataAuthorization < Inferno::TestGroup
                                                                  scope: bulk_scope,
                                                                  iss: 'not_a_valid_iss',
                                                                  sub: bulk_client_id,
-                                                                 aud: bulk_token_endpoint)
+                                                                 aud: bulk_token_endpoint,
+                                                                 kid: bulk_jwks_kid)
 
         post(**{ client: :token_endpoint }.merge(post_request_content))