diff --git a/mailpoet/lib/API/JSON/v1/Setup.php b/mailpoet/lib/API/JSON/v1/Setup.php
index b5a46e2d26..d8e300e575 100644
--- a/mailpoet/lib/API/JSON/v1/Setup.php
+++ b/mailpoet/lib/API/JSON/v1/Setup.php
@@ -5,6 +5,7 @@ namespace MailPoet\API\JSON\v1;
 use MailPoet\API\JSON\Endpoint as APIEndpoint;
 use MailPoet\Config\AccessControl;
 use MailPoet\Config\Activator;
+use MailPoet\Settings\SettingsController;
 use MailPoet\WP\Functions as WPFunctions;
 
 class Setup extends APIEndpoint {
@@ -18,17 +19,23 @@ class Setup extends APIEndpoint {
   /** @var Activator */
   private $activator;
 
+  /** @var SettingsController */
+  private $settings;
+
   public function __construct(
     WPFunctions $wp,
-    Activator $activator
+    Activator $activator,
+    SettingsController $settings
   ) {
     $this->wp = $wp;
     $this->activator = $activator;
+    $this->settings = $settings;
   }
 
   public function reset() {
     try {
       $this->activator->deactivate();
+      $this->settings->resetCache();
       $this->activator->activate();
       $this->wp->doAction('mailpoet_setup_reset');
       return $this->successResponse();
diff --git a/mailpoet/tests/integration/API/JSON/v1/SetupTest.php b/mailpoet/tests/integration/API/JSON/v1/SetupTest.php
index 7d71cef3e6..26a7c5fa53 100644
--- a/mailpoet/tests/integration/API/JSON/v1/SetupTest.php
+++ b/mailpoet/tests/integration/API/JSON/v1/SetupTest.php
@@ -34,7 +34,7 @@ class SetupTest extends \MailPoetTest {
     $captchaRenderer = $this->diContainer->get(CaptchaRenderer::class);
     $migrator = $this->diContainer->get(Migrator::class);
     $cronActionScheduler = $this->diContainer->get(ActionScheduler::class);
-    $router = new Setup($wpStub, new Activator($this->connection, $settings, $populator, $wpStub, $migrator, $cronActionScheduler));
+    $router = new Setup($wpStub, new Activator($this->connection, $settings, $populator, $wpStub, $migrator, $cronActionScheduler), $settings);
     $response = $router->reset();
     verify($response->status)->equals(APIResponse::STATUS_OK);