diff --git a/setup.rst b/setup.rst
index a7fa8c66826..8e41f013958 100644
--- a/setup.rst
+++ b/setup.rst
@@ -15,7 +15,7 @@ Technical Requirements
 Before creating your first Symfony application you must:
 
 * Install PHP 8.2 or higher and these PHP extensions (which are installed and
-  enabled by default in most PHP 8 installations): `Ctype`_, `iconv`_,
+  enabled by default in most PHP 8 installations): `Intl`_, `Ctype`_, `iconv`_,
   `PCRE`_, `Session`_, `SimpleXML`_, and `Tokenizer`_;
 * `Install Composer`_, which is used to install PHP packages.