diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index 6fe7692d3eed7..8888378e3fc30 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -390,9 +390,9 @@ public function register($name)
      *
      * If a Command is not enabled it will not be added.
      *
-     * @param Command[] $commands An array of commands
+     * @param Command[] $commands An array or iterator of commands
      */
-    public function addCommands(array $commands)
+    public function addCommands(iterable $commands)
     {
         foreach ($commands as $command) {
             $this->add($command);