diff --git a/book/internals.rst b/book/internals.rst
index cf204094287..2a63680c766 100644
--- a/book/internals.rst
+++ b/book/internals.rst
@@ -364,6 +364,19 @@ The FrameworkBundle registers several listeners:
 
     Read more on the :ref:`kernel.response event <component-http-kernel-kernel-response>`.
 
+.. index::
+    single: Event; kernel.finish_request
+
+``kernel.finish_request`` Event
+...............................
+
+*Event Class*: :class:`Symfony\\Component\\HttpKernel\\Event\\FinishRequestEvent`
+
+The purpose of this event is to to handle tasks that should be performed after
+the request has been handled but that do not need to modify the response.
+Event listeners for the ``kernel.finish_request`` event are called in both
+successful and exception cases.
+
 .. index::
    single: Event; kernel.terminate