diff --git a/doc/usage/extensions/autosectionlabel.rst b/doc/usage/extensions/autosectionlabel.rst
index b5b9b51a99..bf7a83356a 100644
--- a/doc/usage/extensions/autosectionlabel.rst
+++ b/doc/usage/extensions/autosectionlabel.rst
@@ -51,6 +51,6 @@ Debugging
 ---------
 
 The ``WARNING: undefined label`` indicates that your reference in
-:rst:role:`ref` is mis-spelled. Invoking :program:`sphinx-build` with ``-vv``
+:rst:role:`ref` is mis-spelled. Invoking :program:`sphinx-build` with ``-vvv``
 (see :option:`-v`) will print all section names and the labels that have been
 generated for them. This output can help finding the right reference label.