diff --git a/phpstan.neon b/phpstan.neon
index 98b5a4b7..b4b691f6 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -37,3 +37,5 @@ parameters:
 
 		# Ignore bad php internal functions behavior
 		- '#^Parameter \#1 \$haystack of static method Nette\\Utils\\Strings\:\:contains\(\) expects string, string\|false given\.$#'
+		- message: '#^Method Apitte\\Core\\Annotation\\Controller\\OpenApi\:\:purifyDocblock\(\) should return string but returns string\|null\.$#'
+		  path: %currentWorkingDirectory%/src/Annotation/Controller/OpenApi.php
diff --git a/src/Annotation/Controller/OpenApi.php b/src/Annotation/Controller/OpenApi.php
index b44d8514..aa988577 100644
--- a/src/Annotation/Controller/OpenApi.php
+++ b/src/Annotation/Controller/OpenApi.php
@@ -11,7 +11,7 @@
 final class OpenApi
 {
 
-	/** @var mixed[] */
+	/** @var string */
 	private $data;
 
 	/**
@@ -19,15 +19,18 @@ final class OpenApi
 	 */
 	public function __construct(array $data)
 	{
-		$this->data = $data;
+		$this->data = $this->purifyDocblock($data['value']);
 	}
 
-	/**
-	 * @return mixed[]
-	 */
-	public function getData(): array
+	public function getData(): string
 	{
 		return $this->data;
 	}
 
+	private function purifyDocblock(string $docblock): string
+	{
+		// Removes useless whitespace and * from start of every line
+		return preg_replace('#\s*\*\/$|^\s*\*\s{0,1}|^\/\*{1,2}#m', '', $docblock);
+	}
+
 }
diff --git a/src/DI/Loader/DoctrineAnnotationLoader.php b/src/DI/Loader/DoctrineAnnotationLoader.php
index e4c16752..c58d1a81 100644
--- a/src/DI/Loader/DoctrineAnnotationLoader.php
+++ b/src/DI/Loader/DoctrineAnnotationLoader.php
@@ -24,6 +24,7 @@
 use Apitte\Core\Schema\Builder\SchemaBuilder;
 use Doctrine\Common\Annotations\AnnotationReader;
 use Doctrine\Common\Annotations\AnnotationRegistry;
+use Nette\Neon\Neon;
 use Nette\Reflection\ClassType;
 
 final class DoctrineAnnotationLoader extends AbstractContainerLoader
@@ -294,7 +295,7 @@ protected function parseControllerMethodsAnnotations(Controller $controller, Cla
 				// Parse @OpenApi ================
 				if (get_class($annotation) === OpenApi::class) {
 					/** @var OpenApi $annotation */
-					$schemaMethod->setOpenApi($annotation->getData());
+					$schemaMethod->setOpenApi(Neon::decode($annotation->getData()) ?? []);
 					continue;
 				}
 
diff --git a/tests/cases/DI/ApiExtension.phpt b/tests/cases/DI/ApiExtension.phpt
index 57f74a87..18ee137b 100644
--- a/tests/cases/DI/ApiExtension.phpt
+++ b/tests/cases/DI/ApiExtension.phpt
@@ -56,7 +56,7 @@ test(function (): void {
 
 	/** @var Schema $schema */
 	$schema = $container->getService('api.core.schema');
-	Assert::count(3, $schema->getEndpoints());
+	Assert::count(4, $schema->getEndpoints());
 	Assert::equal(['GET'], $schema->getEndpoints()[0]->getMethods());
 	Assert::equal('/api/v1/foobar/baz1', $schema->getEndpoints()[0]->getMask());
 	Assert::equal('#/api/v1/foobar/baz1$#', $schema->getEndpoints()[0]->getPattern());
diff --git a/tests/cases/DI/Loader/DoctrineAnnotationLoader.phpt b/tests/cases/DI/Loader/DoctrineAnnotationLoader.phpt
index fa453455..42a4b51a 100644
--- a/tests/cases/DI/Loader/DoctrineAnnotationLoader.phpt
+++ b/tests/cases/DI/Loader/DoctrineAnnotationLoader.phpt
@@ -58,7 +58,7 @@ test(function (): void {
 	Assert::equal(FoobarController::class, $controller->getClass());
 	Assert::equal('/foobar', $controller->getPath());
 
-	Assert::count(3, $controller->getMethods());
+	Assert::count(4, $controller->getMethods());
 
 	Assert::equal('baz1', $controller->getMethods()['baz1']->getName());
 	Assert::equal('/baz1', $controller->getMethods()['baz1']->getPath());
@@ -68,6 +68,14 @@ test(function (): void {
 	Assert::equal('/baz2', $controller->getMethods()['baz2']->getPath());
 	Assert::equal(['GET', 'POST'], $controller->getMethods()['baz2']->getMethods());
 
+	Assert::equal(
+		[
+			'foo' => ['bar' => 'baz'],
+			'lorem' => ['ipsum', 'dolor', 'sit', 'amet'],
+		],
+		$controller->getMethods()['openapi']->getOpenApi()
+	);
+
 	Assert::equal(['testapi'], $controller->getGroupIds());
 	Assert::equal(['/api', '/v1'], $controller->getGroupPaths());
 });
diff --git a/tests/fixtures/Controllers/FoobarController.php b/tests/fixtures/Controllers/FoobarController.php
index aa177e15..95ee68c3 100644
--- a/tests/fixtures/Controllers/FoobarController.php
+++ b/tests/fixtures/Controllers/FoobarController.php
@@ -4,6 +4,7 @@
 
 use Apitte\Core\Annotation\Controller\ControllerPath;
 use Apitte\Core\Annotation\Controller\Method;
+use Apitte\Core\Annotation\Controller\OpenApi;
 use Apitte\Core\Annotation\Controller\Path;
 use Apitte\Core\Http\ApiRequest;
 use Apitte\Core\Http\ApiResponse;
@@ -38,6 +39,23 @@ public function baz3(ApiRequest $request, ApiResponse $response): void
 	{
 	}
 
+	/**
+	 * @Path("/openapi")
+	 * @Method({"PUT"})
+	 * @OpenApi("
+	 *  foo:
+	 *	   bar: baz
+	 *  lorem:
+	 *     - ipsum
+	 *     - dolor
+	 *     - sit
+	 *     - amet
+	 * ")
+	 */
+	public function openapi(ApiRequest $request, ApiResponse $response): void
+	{
+	}
+
 	public function getData1(): void
 	{
 		// Skip this method