diff --git a/source/guides/writing-pyproject-toml.rst b/source/guides/writing-pyproject-toml.rst
index cfde063aa..f77b83b7f 100644
--- a/source/guides/writing-pyproject-toml.rst
+++ b/source/guides/writing-pyproject-toml.rst
@@ -322,6 +322,8 @@ You can also specify the format explicitly, like this:
    readme = {file = "README.txt", content-type = "text/x-rst"}
 
 
+.. _license:
+
 ``license``
 -----------
 
@@ -386,6 +388,8 @@ license, both to avoid confusion and because some organizations avoid software
 whose license is unapproved.)
 
 
+.. _license-files:
+
 ``license-files``
 -----------------