diff --git a/pep-0478.txt b/pep-0478.txt
index c6a4a897d..6ece1a558 100644
--- a/pep-0478.txt
+++ b/pep-0478.txt
@@ -66,6 +66,7 @@ Implemented / Final PEPs:
 * PEP 486, make the Python Launcher aware of virtual environments
 * PEP 475, retrying system calls that fail with EINTR
 * PEP 492, coroutines with async and await syntax
+* PEP 488, elimination of PYO files
 
 Accepted PEPs: