diff --git a/Cronner/DI/CronnerExtension.php b/Cronner/DI/CronnerExtension.php
index 15d4a4b..1f246fe 100644
--- a/Cronner/DI/CronnerExtension.php
+++ b/Cronner/DI/CronnerExtension.php
@@ -97,7 +97,7 @@ public function loadConfiguration()
 
 		if ($config['bar'] && class_exists('Tracy\Bar')) {
 			$container->addDefinition($this->prefix('bar'))
-				->setClass('stekycz\Cronner\Bar\Tasks', [$this->prefix('@runner'), $this->prefix('@timestampStorage')]);
+				->setClass('stekycz\Cronner\Bar\Tasks', array($this->prefix('@runner'), $this->prefix('@timestampStorage')));
 		}
 	}
 
@@ -112,7 +112,7 @@ public function beforeCompile()
 
 		if ($builder->hasDefinition($this->prefix('bar'))) {
 			$builder->getDefinition('tracy.bar')
-				->addSetup('addPanel', [$this->prefix('@bar')]);
+				->addSetup('addPanel', array($this->prefix('@bar')));
 		}
 	}
 
diff --git a/composer.json b/composer.json
index 6f292c6..c10742a 100644
--- a/composer.json
+++ b/composer.json
@@ -39,5 +39,8 @@
 	},
 	"autoload-dev": {
 		"classmap": ["tests/CronnerTests/objects"]
+	},
+	"config": {
+		"disable-tls": true
 	}
 }
diff --git a/tests/CronnerTests/Cronner.phpt b/tests/CronnerTests/Cronner.phpt
index 6ed312d..438da80 100644
--- a/tests/CronnerTests/Cronner.phpt
+++ b/tests/CronnerTests/Cronner.phpt
@@ -227,9 +227,9 @@ class CronnerTest extends \TestCase
 
 	public function testAddingTwoTestsWithTheSameNameInOneObject()
 	{
-		$self = $this;
-		Assert::exception(function () use ($self) {
-			$self->cronner->addTasks(new SameTaskNameObject());
+		$cronner = $this->cronner;
+		Assert::exception(function () use ($cronner) {
+			$cronner->addTasks(new SameTaskNameObject());
 		}, '\stekycz\Cronner\DuplicateTaskNameException');
 	}
 
@@ -237,10 +237,10 @@ class CronnerTest extends \TestCase
 
 	public function testAddingTwoTestsWithTheSameNameInMoreObjects()
 	{
-		$self = $this;
-		Assert::exception(function () use ($self) {
-			$self->cronner->addTasks(new AnotherSimpleTestObject());
-			$self->cronner->addTasks(new NextSimpleTestObject());
+		$cronner = $this->cronner;
+		Assert::exception(function () use ($cronner) {
+			$cronner->addTasks(new AnotherSimpleTestObject());
+			$cronner->addTasks(new NextSimpleTestObject());
 		}, '\stekycz\Cronner\DuplicateTaskNameException');
 	}