diff --git a/src/Adapter/Builder/GcloudAdapterDefinitionBuilder.php b/src/Adapter/Builder/GcloudAdapterDefinitionBuilder.php
index b52a881..8072736 100644
--- a/src/Adapter/Builder/GcloudAdapterDefinitionBuilder.php
+++ b/src/Adapter/Builder/GcloudAdapterDefinitionBuilder.php
@@ -57,7 +57,7 @@ protected function configureDefinition(Definition $definition, array $options, ?
         $bucketDefinition->setArgument(0, $options['bucket']);
 
         $visibilityHandlerReference = null;
-        if ($options['visibility_handler'] !== null) {
+        if (null !== $options['visibility_handler']) {
             $visibilityHandlerReference = new Reference($options['visibility_handler']);
         }
 
diff --git a/tests/Adapter/Builder/GcloudAdapterDefinitionBuilderTest.php b/tests/Adapter/Builder/GcloudAdapterDefinitionBuilderTest.php
index f1db971..3d54487 100644
--- a/tests/Adapter/Builder/GcloudAdapterDefinitionBuilderTest.php
+++ b/tests/Adapter/Builder/GcloudAdapterDefinitionBuilderTest.php
@@ -66,7 +66,7 @@ public function testOptionsBehavior()
             'client' => 'my_client',
             'bucket' => 'bucket_name',
             'prefix' => 'prefix/path',
-            'visibility_handler' => UniformBucketLevelAccessVisibility::class
+            'visibility_handler' => UniformBucketLevelAccessVisibility::class,
         ], null);
 
         $this->assertSame(GoogleCloudStorageAdapter::class, $definition->getClass());