diff --git a/composer.json b/composer.json
index 13430076..4ff61951 100644
--- a/composer.json
+++ b/composer.json
@@ -25,13 +25,14 @@
   "require": {
     "php": "^7.1",
     "ext-simplexml": "*",
-    "phpstan/phpstan": "^0.11.4",
+    "phpstan/phpstan": "^0.11.7",
     "nikic/php-parser": "^4.0"
   },
   "require-dev": {
     "consistence/coding-standard": "^3.0.1",
     "jakub-onderka/php-parallel-lint": "^1.0",
     "dealerdirect/phpcodesniffer-composer-installer": "^0.4.4",
+    "nette/di": "^3.0-stable",
     "phpunit/phpunit": "^7.0",
     "phing/phing": "^2.16.0",
     "phpstan/phpstan-strict-rules": "^0.11",
diff --git a/extension.neon b/extension.neon
index a98009f5..70249360 100644
--- a/extension.neon
+++ b/extension.neon
@@ -4,6 +4,13 @@ parameters:
 		constant_hassers: true
 		console_application_loader: null
 
+parametersSchema:
+	symfony: structure([
+		container_xml_path: schema(string(), nullable())
+		constant_hassers: bool()
+		console_application_loader: schema(string(), nullable())
+	])
+
 rules:
 	- PHPStan\Rules\Symfony\ContainerInterfacePrivateServiceRule
 	- PHPStan\Rules\Symfony\ContainerInterfaceUnknownServiceRule
diff --git a/tests/Symfony/NeonTest.php b/tests/Symfony/NeonTest.php
index 18b90a9e..dfc57b4c 100644
--- a/tests/Symfony/NeonTest.php
+++ b/tests/Symfony/NeonTest.php
@@ -4,6 +4,7 @@
 
 use Nette\DI\Compiler;
 use Nette\DI\ContainerLoader;
+use PHPStan\DependencyInjection\ParametersSchemaExtension;
 use PHPStan\DependencyInjection\RulesExtension;
 use PHPUnit\Framework\TestCase;
 use function sprintf;
@@ -24,6 +25,7 @@ public function testExtensionNeon(): void
 
 		$class = $loader->load(function (Compiler $compiler): void {
 			$compiler->addExtension('rules', new RulesExtension());
+			$compiler->addExtension('parametersSchema', new ParametersSchemaExtension());
 			$compiler->addConfig(['parameters' => ['rootDir' => __DIR__]]);
 			$compiler->loadConfig(__DIR__ . '/../../extension.neon');
 			$compiler->loadConfig(__DIR__ . '/config.neon');
@@ -31,6 +33,9 @@ public function testExtensionNeon(): void
 		/** @var \Nette\DI\Container $container */
 		$container = new $class();
 
+		$parameters = $container->getParameters();
+		unset($parameters['__parametersSchema']);
+
 		self::assertSame([
 			'rootDir' => __DIR__,
 			'symfony' => [
@@ -38,7 +43,7 @@ public function testExtensionNeon(): void
 				'constant_hassers' => true,
 				'console_application_loader' => null,
 			],
-		], $container->getParameters());
+		], $parameters);
 
 		self::assertCount(6, $container->findByTag('phpstan.rules.rule'));
 		self::assertCount(11, $container->findByTag('phpstan.broker.dynamicMethodReturnTypeExtension'));