diff --git a/DataCollector/ConfigDataCollector.php b/DataCollector/ConfigDataCollector.php
index 1e435cd21d..0632f92a18 100644
--- a/DataCollector/ConfigDataCollector.php
+++ b/DataCollector/ConfigDataCollector.php
@@ -49,7 +49,7 @@ public function collect(Request $request, Response $response, \Throwable $except
             'env' => isset($this->kernel) ? $this->kernel->getEnvironment() : 'n/a',
             'debug' => isset($this->kernel) ? $this->kernel->isDebug() : 'n/a',
             'php_version' => PHP_VERSION,
-            'php_architecture' => PHP_INT_SIZE * 8,
+            'php_architecture' => \PHP_INT_SIZE * 8,
             'php_intl_locale' => class_exists('Locale', false) && \Locale::getDefault() ? \Locale::getDefault() : 'n/a',
             'php_timezone' => date_default_timezone_get(),
             'xdebug_enabled' => \extension_loaded('xdebug'),
diff --git a/Tests/Controller/ContainerControllerResolverTest.php b/Tests/Controller/ContainerControllerResolverTest.php
index 19daf88431..d394c3bce4 100644
--- a/Tests/Controller/ContainerControllerResolverTest.php
+++ b/Tests/Controller/ContainerControllerResolverTest.php
@@ -15,7 +15,6 @@
 use Psr\Log\LoggerInterface;
 use Symfony\Bridge\PhpUnit\ExpectDeprecationTrait;
 use Symfony\Component\DependencyInjection\Container;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Controller\ContainerControllerResolver;
 
diff --git a/Tests/DataCollector/ConfigDataCollectorTest.php b/Tests/DataCollector/ConfigDataCollectorTest.php
index 6bc0929b9f..9cb75a6051 100644
--- a/Tests/DataCollector/ConfigDataCollectorTest.php
+++ b/Tests/DataCollector/ConfigDataCollectorTest.php
@@ -32,7 +32,7 @@ public function testCollect()
         $this->assertSame('config', $c->getName());
         $this->assertMatchesRegularExpression('~^'.preg_quote($c->getPhpVersion(), '~').'~', PHP_VERSION);
         $this->assertMatchesRegularExpression('~'.preg_quote((string) $c->getPhpVersionExtra(), '~').'$~', PHP_VERSION);
-        $this->assertSame(PHP_INT_SIZE * 8, $c->getPhpArchitecture());
+        $this->assertSame(\PHP_INT_SIZE * 8, $c->getPhpArchitecture());
         $this->assertSame(class_exists('Locale', false) && \Locale::getDefault() ? \Locale::getDefault() : 'n/a', $c->getPhpIntlLocale());
         $this->assertSame(date_default_timezone_get(), $c->getPhpTimezone());
         $this->assertSame(Kernel::VERSION, $c->getSymfonyVersion());