diff --git a/quick_tour/the_big_picture.rst b/quick_tour/the_big_picture.rst
index bf10f772f1a..dab80a960bb 100644
--- a/quick_tour/the_big_picture.rst
+++ b/quick_tour/the_big_picture.rst
@@ -32,6 +32,7 @@ On **Linux** and **Mac OS X** systems, execute the following console commands:
 .. code-block:: bash
 
     $ curl -LsS http://symfony.com/installer > symfony.phar
+    $ chmod +x symfony.phar
     $ sudo mv symfony.phar /usr/local/bin/symfony
 
 .. note::
@@ -42,6 +43,7 @@ On **Linux** and **Mac OS X** systems, execute the following console commands:
     .. code-block:: bash
 
         $ php -r "readfile('http://symfony.com/installer');" > symfony.phar
+        $ chmod +x symfony.phar
         $ sudo mv symfony.phar /usr/local/bin/symfony
 
 After installing the Symfony installer, you'll have to open a new console window