diff --git a/session/database.rst b/session/database.rst
index 01c663911e1..dffed5562e7 100644
--- a/session/database.rst
+++ b/session/database.rst
@@ -234,6 +234,16 @@ first register a new handler service with your database credentials:
             ;
         };
 
+.. tip::
+
+    When using MySQL as the database, the DSN defined in ``DATABASE_URL`` can
+    contain the ``charset`` and ``unix_socket`` options as query string parameters.
+
+    .. versionadded:: 5.3
+
+        The support for ``charset`` and ``unix_socket`` options was introduced
+        in Symfony 5.3.
+
 Next, use the :ref:`handler_id <config-framework-session-handler-id>`
 configuration option to tell Symfony to use this service as the session handler: