diff --git a/src/Plugin/Guard/FinalizeGuard.php b/src/Plugin/Guard/FinalizeGuard.php
index daf75e3..bb47f52 100644
--- a/src/Plugin/Guard/FinalizeGuard.php
+++ b/src/Plugin/Guard/FinalizeGuard.php
@@ -45,7 +45,7 @@ function (ActionEvent $actionEvent): void {
                 $messageName = $actionEvent->getParam(MessageBus::EVENT_PARAM_MESSAGE_NAME);
 
                 if ($promise instanceof Promise) {
-                    $newPromise = $promise->then(function ($result) use ($actionEvent, $messageName): void {
+                    $newPromise = $promise->then(function ($result) use ($actionEvent, $messageName) {
                         if (! $this->authorizationService->isGranted($messageName, $result)) {
                             $actionEvent->stopPropagation(true);
 
@@ -55,8 +55,9 @@ function (ActionEvent $actionEvent): void {
 
                             throw new UnauthorizedException($messageName);
                         }
-                    });
 
+                        return $result;
+                    });
                     $actionEvent->setParam(QueryBus::EVENT_PARAM_PROMISE, $newPromise);
                 } elseif (! $this->authorizationService->isGranted($messageName)) {
                     $actionEvent->stopPropagation(true);
diff --git a/tests/Plugin/Guard/FinalizeGuardTest.php b/tests/Plugin/Guard/FinalizeGuardTest.php
index 61eaeed..5a16f41 100644
--- a/tests/Plugin/Guard/FinalizeGuardTest.php
+++ b/tests/Plugin/Guard/FinalizeGuardTest.php
@@ -72,7 +72,10 @@ function (ActionEvent $actionEvent): void {
         );
 
         $promise = $this->messageBus->dispatch('test_event');
-        $promise->done();
+        $promise->done(function ($result) {
+            $this->assertNotNull($result);
+            $this->assertEquals('result', $result);
+        });
     }
 
     /**