diff --git a/src/Symfony/Component/Process/Process.php b/src/Symfony/Component/Process/Process.php
index c11d5c53e043..b40aff4a9d6e 100644
--- a/src/Symfony/Component/Process/Process.php
+++ b/src/Symfony/Component/Process/Process.php
@@ -229,8 +229,6 @@ public function start($callback = null)
                 $descriptors = array_merge($descriptors, array(array('pipe', 'w')));
 
                 $this->commandline = '('.$this->commandline.') 3>/dev/null; code=$?; echo $code >&3; exit $code';
-            } else {
-                $this->commandline = 'exec ' . $this->commandline;
             }
         }
 
diff --git a/src/Symfony/Component/Process/Tests/AbstractProcessTest.php b/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
index 5e482a41e89e..a3df4e682e34 100644
--- a/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
+++ b/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
@@ -76,6 +76,29 @@ public function testProcessPipes($expected, $code)
         $this->assertSame($expected, $p->getErrorOutput());
     }
 
+    public function chainedCommandsOutputProvider()
+    {
+        return array(
+            array('11', ';', '1'),
+            array('22', '&&', '2'),
+        );
+    }
+
+    /**
+     *
+     * @dataProvider chainedCommandsOutputProvider
+     */
+    public function testChainedCommandsOutput($expected, $operator, $input)
+    {
+        if (defined('PHP_WINDOWS_VERSION_BUILD')) {
+            $this->markTestSkipped('Does it work on windows ?');
+        }
+
+        $process = $this->getProcess(sprintf('echo -n %s %s echo -n %s', $input, $operator, $input));
+        $process->run();
+        $this->assertEquals($expected, $process->getOutput());
+    }
+
     public function testCallbackIsExecutedForOutput()
     {
         $p = $this->getProcess(sprintf('php -r %s', escapeshellarg('echo \'foo\';')));