diff --git a/Tests/Unit/Task/Composer/InstallTaskTest.php b/Tests/Unit/Task/Composer/InstallTaskTest.php
new file mode 100644
index 00000000..b610f71a
--- /dev/null
+++ b/Tests/Unit/Task/Composer/InstallTaskTest.php
@@ -0,0 +1,46 @@
+<?php
+namespace TYPO3\Surf\Tests\Unit\Task\Composer;
+
+/*                                                                        *
+ * This script belongs to the TYPO3 project "TYPO3 Surf".                 *
+ *                                                                        *
+ *                                                                        */
+
+use TYPO3\Surf\Tests\Unit\Task\BaseTaskTest;
+
+/**
+ * Unit test for the TagTask
+ */
+class InstallTaskTest extends BaseTaskTest
+{
+    /**
+     * Set up test dependencies
+     */
+    protected function setUp()
+    {
+        parent::setUp();
+
+        $this->application->setDeploymentPath('/home/jdoe/app');
+    }
+
+    /**
+     * @test
+     */
+    public function executeUserConfiguredComposerCommand()
+    {
+        $options = array(
+            'composerCommandPath' => '/my/path/to/composer.phar',
+        );
+
+        $this->task->execute($this->node, $this->application, $this->deployment, $options);
+        $this->assertCommandExecuted('/^\/my\/path\/to\/composer.phar install --no-ansi --no-interaction --no-dev --no-progress 2>&1$/');
+    }
+
+    /**
+     * @return \TYPO3\Surf\Domain\Model\Task
+     */
+    protected function createTask()
+    {
+        return new \TYPO3\Surf\Task\Composer\InstallTask();
+    }
+}
diff --git a/src/Task/Composer/InstallTask.php b/src/Task/Composer/InstallTask.php
index 8a7cd680..1f01f2d5 100644
--- a/src/Task/Composer/InstallTask.php
+++ b/src/Task/Composer/InstallTask.php
@@ -22,7 +22,7 @@ class InstallTask extends \TYPO3\Surf\Domain\Model\Task implements \TYPO3\Surf\D
      * @param \TYPO3\Surf\Domain\Model\Application $application
      * @param \TYPO3\Surf\Domain\Model\Deployment $deployment
      * @param array $options
-     * @return void
+     * @throws \TYPO3\Surf\Exception\InvalidConfigurationException
      */
     public function execute(Node $node, Application $application, Deployment $deployment, array $options = array())
     {
@@ -40,8 +40,8 @@ public function execute(Node $node, Application $application, Deployment $deploy
         }
 
         if ($this->composerManifestExists($composerRootPath, $node, $deployment)) {
-            $command = $this->buildComposerInstallCommand($composerRootPath, $options);
-            $this->shell->executeOrSimulate($command, $node, $deployment);
+            $commands = $this->buildComposerInstallCommands($composerRootPath, $options);
+            $this->shell->executeOrSimulate($commands, $node, $deployment);
         }
     }
 
@@ -64,15 +64,18 @@ public function simulate(Node $node, Application $application, Deployment $deplo
      *
      * @param string $manifestPath
      * @param array $options
-     * @return string
+     * @return array
      * @throws \TYPO3\Surf\Exception\TaskExecutionException
      */
-    protected function buildComposerInstallCommand($manifestPath, array $options)
+    protected function buildComposerInstallCommands($manifestPath, array $options)
     {
         if (!isset($options['composerCommandPath'])) {
             throw new \TYPO3\Surf\Exception\TaskExecutionException('Composer command not found. Set the composerCommandPath option.', 1349163257);
         }
-        return sprintf('cd %s && %s install --no-ansi --no-interaction --no-dev --no-progress', escapeshellarg($manifestPath), escapeshellcmd($options['composerCommandPath']));
+        return array(
+            'cd ' . escapeshellarg($manifestPath),
+            escapeshellcmd($options['composerCommandPath']) . ' install --no-ansi --no-interaction --no-dev --no-progress 2>&1',
+        );
     }
 
     /**