diff --git a/pep-0478.txt b/pep-0478.txt
index a3ef71de9..0818f4ae7 100644
--- a/pep-0478.txt
+++ b/pep-0478.txt
@@ -66,6 +66,7 @@ Accepted PEPs:
 * PEP 448, additional unpacking generalizations
 * PEP 471, os.scandir()
 * PEP 475, retrying system calls that fail with EINTR
+* PEP 485, math.isclose(), a function for testing approximate equality
 * PEP 486, make the Python Launcher aware of virtual environments
 
 Proposed changes for 3.5: