diff --git a/src/Symfony/Component/Console/Helper/ProcessHelper.php b/src/Symfony/Component/Console/Helper/ProcessHelper.php
index 5010607511468..82935baeaa81d 100644
--- a/src/Symfony/Component/Console/Helper/ProcessHelper.php
+++ b/src/Symfony/Component/Console/Helper/ProcessHelper.php
@@ -43,9 +43,7 @@ public function run(OutputInterface $output, $cmd, $error = null, callable $call
 
         $formatter = $this->getHelperSet()->get('debug_formatter');
 
-        if (is_array($cmd)) {
-            $process = new Process($cmd);
-        } elseif ($cmd instanceof Process) {
+        if ($cmd instanceof Process) {
             $process = $cmd;
         } else {
             $process = new Process($cmd);