diff --git a/peps/pep-0561.rst b/peps/pep-0561.rst
index 0344bb912..3077e99f4 100644
--- a/peps/pep-0561.rst
+++ b/peps/pep-0561.rst
@@ -9,6 +9,7 @@ Created: 09-Sep-2017
 Python-Version: 3.7
 Post-History: 10-Sep-2017, 12-Sep-2017, 06-Oct-2017, 26-Oct-2017, 12-Apr-2018
 
+.. canonical-typing-spec:: :ref:`typing:packaging-typed-libraries`
 
 Abstract
 ========