diff --git a/extensions/mutex/composer.json b/extensions/mutex/composer.json
index 4499543..db8cde3 100644
--- a/extensions/mutex/composer.json
+++ b/extensions/mutex/composer.json
@@ -22,6 +22,6 @@
 		"yiisoft/yii2": "*"
 	},
 	"autoload": {
-		"psr-0": { "yii\\smarty": "" }
+		"psr-0": { "yii\\mutex": "" }
 	}
 }
diff --git a/extensions/mutex/yii/mutex/Mutex.php b/extensions/mutex/yii/mutex/Mutex.php
index 5268d86..14ebf8f 100644
--- a/extensions/mutex/yii/mutex/Mutex.php
+++ b/extensions/mutex/yii/mutex/Mutex.php
@@ -33,7 +33,13 @@ abstract class Mutex extends Component
 	public function init()
 	{
 		if ($this->autoRelease) {
-			register_shutdown_function(array($this, 'shutdownFunction'));
+			$referenceHolder = new stdClass();
+			$referenceHolder->locks = &$this->_locks;
+			register_shutdown_function(function ($ref) {
+				foreach ($ref->locks as $lock) {
+					$this->release($lock);
+				}
+			}, $referenceHolder);
 		}
 	}
 
@@ -42,9 +48,7 @@ abstract class Mutex extends Component
 	 */
 	public function shutdownFunction()
 	{
-		foreach ($this->_locks as $lock) {
-			$this->release($lock);
-		}
+
 	}
 
 	/**
diff --git a/extensions/mutex/yii/mutex/cache/Mutex.php b/extensions/mutex/yii/mutex/cache/Mutex.php
index 67b6445..73e277b 100644
--- a/extensions/mutex/yii/mutex/cache/Mutex.php
+++ b/extensions/mutex/yii/mutex/cache/Mutex.php
@@ -74,7 +74,7 @@ class Mutex extends \yii\mutex\Mutex
 	 */
 	protected function getIsAcquired($name)
 	{
-		
+
 	}
 
 	/**