diff --git a/src/oidcc_authorization.erl b/src/oidcc_authorization.erl
index 64175b4..8cc2b1e 100644
--- a/src/oidcc_authorization.erl
+++ b/src/oidcc_authorization.erl
@@ -447,6 +447,8 @@ essential_params(QueryParams) ->
     lists:filter(
         fun
             ({<<"scope">>, _Value}) -> true;
+            ({<<"response_type">>, _Value}) -> true;
+            ({<<"client_id">>, _Value}) -> true;
             (_Other) -> false
         end,
         QueryParams
diff --git a/test/oidcc_authorization_SUITE.erl b/test/oidcc_authorization_SUITE.erl
index 2bcf919..61de536 100644
--- a/test/oidcc_authorization_SUITE.erl
+++ b/test/oidcc_authorization_SUITE.erl
@@ -44,6 +44,8 @@ create_redirect_url_inl_gov(_Config) ->
 
     ?assertMatch(
         #{
+            <<"client_id">> := <<"client_id">>,
+            <<"response_type">> := <<"code">>,
             <<"scope">> := <<"openid">>,
             <<"request">> := _
         },
diff --git a/test/oidcc_authorization_test.erl b/test/oidcc_authorization_test.erl
index c1c8f81..bc4bde6 100644
--- a/test/oidcc_authorization_test.erl
+++ b/test/oidcc_authorization_test.erl
@@ -211,6 +211,8 @@ create_redirect_url_with_request_object_test() ->
 
     ?assertMatch(
         #{
+            <<"client_id">> := <<"client_id">>,
+            <<"response_type">> := <<"code">>,
             <<"scope">> := <<"openid">>,
             <<"should_be_in">> := <<"both">>,
             <<"request">> := _