diff --git a/typo3/sysext/form/Classes/Domain/Finishers/AbstractFinisher.php b/typo3/sysext/form/Classes/Domain/Finishers/AbstractFinisher.php
index 38b957c1aec8b3b9ffe11e492ed09b984e8d6ffd..5c011fd2dddd151aeefbd6adbff09f514c708bbe 100644
--- a/typo3/sysext/form/Classes/Domain/Finishers/AbstractFinisher.php
+++ b/typo3/sysext/form/Classes/Domain/Finishers/AbstractFinisher.php
@@ -174,6 +174,10 @@ abstract class AbstractFinisher implements FinisherInterface
             return $optionValue;
         }
 
+        if ($optionValue instanceof \Closure) {
+            return $optionValue;
+        }
+
         $formRuntime = $this->finisherContext->getFormRuntime();
 
         // You can encapsulate a option value with {}.
diff --git a/typo3/sysext/form/Tests/Unit/Domain/Finishers/ClosureFinisherTest.php b/typo3/sysext/form/Tests/Unit/Domain/Finishers/ClosureFinisherTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..336a1f080bdb6ddbecfd9fceb3cfb78937e61603
--- /dev/null
+++ b/typo3/sysext/form/Tests/Unit/Domain/Finishers/ClosureFinisherTest.php
@@ -0,0 +1,58 @@
+<?php
+declare(strict_types=1);
+namespace TYPO3\CMS\Form\Tests\Unit\Domain\Finishers;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Prophecy\Argument;
+use Prophecy\Prophecy\ObjectProphecy;
+use TYPO3\CMS\Form\Domain\Finishers\ClosureFinisher;
+use TYPO3\CMS\Form\Domain\Finishers\FinisherContext;
+use TYPO3\CMS\Form\Domain\Runtime\FormRuntime;
+
+/**
+ * Test case
+ */
+class ClosureFinisherTest extends \TYPO3\TestingFramework\Core\Unit\UnitTestCase
+{
+
+    /**
+     * @test
+     */
+    public function closureOptionForFinisherCanBeSetAndIsFunctional()
+    {
+        $closure = function (FinisherContext $finisherContext) {
+            return 'foobar';
+        };
+
+        /** @var ClosureFinisher|\PHPUnit_Framework_MockObject_MockObject|\TYPO3\TestingFramework\Core\AccessibleObjectInterface $mockClosureFinisher */
+        $mockClosureFinisher = $this->getAccessibleMock(ClosureFinisher::class, ['dummy'], [], '', false);
+
+        $mockClosureFinisher->_set('options', [
+            'closure' => $closure
+        ]);
+
+        $finisherContextProphecy = $this->prophesize(FinisherContext::class);
+        $formRuntimeProphecy = $this->prophesize(FormRuntime::class);
+        $finisherContextProphecy->getFormRuntime(Argument::cetera())->willReturn($formRuntimeProphecy->reveal());
+
+        /** @var FinisherContext|ObjectProphecy $revealedFinisherContext */
+        $revealedFinisherContext = $finisherContextProphecy->reveal();
+
+        $mockClosureFinisher->_set('finisherContext', $revealedFinisherContext);
+        $closure = $mockClosureFinisher->_call('parseOption', 'closure');
+
+        $this->assertSame('foobar', $closure($revealedFinisherContext));
+    }
+}