diff --git a/book/part04.rst b/book/part04.rst
index 4222366b4b5..4983d5a9072 100644
--- a/book/part04.rst
+++ b/book/part04.rst
@@ -75,7 +75,7 @@ reference in ``front.php``::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     // ...
 
@@ -155,7 +155,7 @@ With this knowledge in mind, let's write the new version of our framework::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;
     use Symfony\Component\HttpFoundation\Response;
diff --git a/book/part05.rst b/book/part05.rst
index 03b5d854716..a10d9a7a21a 100644
--- a/book/part05.rst
+++ b/book/part05.rst
@@ -106,7 +106,7 @@ Here is the updated and improved version of our framework::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;
     use Symfony\Component\HttpFoundation\Response;
diff --git a/book/part06.rst b/book/part06.rst
index aaa40de1057..abce4d8e88a 100644
--- a/book/part06.rst
+++ b/book/part06.rst
@@ -158,7 +158,7 @@ Let's conclude with the new version of our framework::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;
     use Symfony\Component\HttpFoundation\Response;
diff --git a/book/part09.rst b/book/part09.rst
index 28057eaad06..efca2b9d421 100644
--- a/book/part09.rst
+++ b/book/part09.rst
@@ -136,7 +136,7 @@ the registration of a listener for the ``response`` event::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     // ...
 
diff --git a/book/part11.rst b/book/part11.rst
index ab17a38049c..79ea6bf3849 100644
--- a/book/part11.rst
+++ b/book/part11.rst
@@ -40,7 +40,7 @@ And the new front controller::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;
     use Symfony\Component\HttpFoundation\Response;
diff --git a/book/part12.rst b/book/part12.rst
index 482cd0c0fd8..8f08531116e 100644
--- a/book/part12.rst
+++ b/book/part12.rst
@@ -38,7 +38,7 @@ The front controller code would become more concise::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;
 
@@ -168,7 +168,7 @@ The front controller is now only about wiring everything together::
 
     // example.com/web/front.php
 
-    require_once __DIR__.'/../vendor/.composer/autoload.php';
+    require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\HttpFoundation\Request;