diff --git a/federationapi/routing/send_test.go b/federationapi/routing/send_test.go
index a714d07ee..7f88e7db3 100644
--- a/federationapi/routing/send_test.go
+++ b/federationapi/routing/send_test.go
@@ -461,7 +461,8 @@ func TestBasicTransaction(t *testing.T) {
 	assertInputRoomEvents(t, rsAPI.inputRoomEvents, []gomatrixserverlib.HeaderedEvent{testEvents[len(testEvents)-1]})
 }
 
-// The purpose of this test is to check that if the event received fails auth checks the transaction is failed.
+// The purpose of this test is to check that if the event received fails auth checks the event is still sent to the roomserver
+// as it does the auth check.
 func TestTransactionFailAuthChecks(t *testing.T) {
 	rsAPI := &testRoomserverAPI{
 		queryStateAfterEvents: func(req *api.QueryStateAfterEventsRequest) api.QueryStateAfterEventsResponse {
@@ -479,11 +480,9 @@ func TestTransactionFailAuthChecks(t *testing.T) {
 		testData[len(testData)-1], // a message event
 	}
 	txn := mustCreateTransaction(rsAPI, &txnFedClient{}, pdus)
-	mustProcessTransaction(t, txn, []string{
-		// expect the event to have an error
-		testEvents[len(testEvents)-1].EventID(),
-	})
-	assertInputRoomEvents(t, rsAPI.inputRoomEvents, nil) // expect no messages to be sent to the roomserver
+	mustProcessTransaction(t, txn, []string{})
+	// expect message to be sent to the roomserver
+	assertInputRoomEvents(t, rsAPI.inputRoomEvents, []gomatrixserverlib.HeaderedEvent{testEvents[len(testEvents)-1]})
 }
 
 // The purpose of this test is to make sure that when an event is received for which we do not know the prev_events,