diff --git a/lib/REST.php b/lib/REST.php
index fa2b1ec4..d7d64857 100644
--- a/lib/REST.php
+++ b/lib/REST.php
@@ -40,12 +40,12 @@ class REST {
             'match' => "/fever/",
             'strip' => "/fever/",
             'class' => REST\Fever\API::class,
-        ],
+        ],/*
         'microsub' => [ // Microsub  https://indieweb.org/Microsub
             'match' => "/microsub",
             'strip' => "",
             'class' => REST\Microsub\API::class,
-        ],
+        ],*/
         'microsub_auth' => [ // IndieAuth for Microsub  https://indieauth.spec.indieweb.org/
             'match' => "/u/",
             'strip' => "/u/",
diff --git a/lib/REST/Microsub/Auth.php b/lib/REST/Microsub/Auth.php
index 203a9470..ebc006e4 100644
--- a/lib/REST/Microsub/Auth.php
+++ b/lib/REST/Microsub/Auth.php
@@ -20,9 +20,9 @@ class Auth extends \JKingWeb\Arsse\REST\AbstractHandler {
     const SCOPES = ["read", "follow", "channels"];
     /** The list of the logical functions of this API, with their implementations */
     const FUNCTIONS = [
-        'discovery' => ['GET' => "opDiscovery"],
-        'auth'      => ['GET' => "opLogin",             'POST' => "opCodeVerification"],
-        'token'     => ['GET' => "opTokenVerification", 'POST' => "opIssueAccessToken"],
+        ''      => ['GET' => "opDiscovery"],
+        'auth'  => ['GET' => "opLogin",             'POST' => "opCodeVerification"],
+        'token' => ['GET' => "opTokenVerification", 'POST' => "opIssueAccessToken"],
     ];
     /** The minimal set of reserved URL characters which must be escaped when comparing user ID URLs */
     const USERNAME_ESCAPES = [
@@ -43,9 +43,8 @@ class Auth extends \JKingWeb\Arsse\REST\AbstractHandler {
         }
         // gather the query parameters and act on the "f" (function) parameter
         $process = $req->getQueryParams()['f'] ?? "";
-        $process = strlen($process) ? $process : "discovery";
         $method = $req->getMethod();
-        if (isset(self::FUNCTIONS[$process]) || ($process === "discovery" && !strlen($path)) || ($process !== "discovery" && strlen($path))) {
+        if (isset(self::FUNCTIONS[$process]) || ($process === "" && !strlen($path)) || ($process !== "" && strlen($path))) {
             // the function requested needs to exist
             // the path should also be empty unless we're doing discovery
             return new EmptyResponse(404);
diff --git a/tests/cases/REST/Microsub/TestAuth.php b/tests/cases/REST/Microsub/TestAuth.php
new file mode 100644
index 00000000..f4eb5797
--- /dev/null
+++ b/tests/cases/REST/Microsub/TestAuth.php
@@ -0,0 +1,16 @@
+<?php
+/** @license MIT
+ * Copyright 2017 J. King, Dustin Wilson et al.
+ * See LICENSE and AUTHORS files for details */
+
+declare(strict_types=1);
+namespace JKingWeb\Arsse\TestCase\REST\Microsub;
+
+use Psr\Http\Message\ResponseInterface;
+use Zend\Diactoros\ServerRequest;
+use Zend\Diactoros\Response\JsonResponse as Response;
+use Zend\Diactoros\Response\EmptyResponse;
+
+/** @covers \JKingWeb\Arsse\REST\Microsub\Auth<extended> */
+class TestAuth extends \JKingWeb\Arsse\Test\AbstractTest {
+}
diff --git a/tests/phpunit.dist.xml b/tests/phpunit.dist.xml
index cae3734f..d116d3e2 100644
--- a/tests/phpunit.dist.xml
+++ b/tests/phpunit.dist.xml
@@ -124,6 +124,9 @@
         <file>cases/REST/Fever/TestAPI.php</file>
         <file>cases/REST/Fever/PDO/TestAPI.php</file>
     </testsuite>
+    <testsuite name="Microsub">
+        <file>cases/REST/Microsub/TestAuth.php</file>
+    </testsuite>
     <testsuite name="Admin tools">
         <file>cases/Service/TestService.php</file>
         <file>cases/CLI/TestCLI.php</file>