diff --git a/Lib/locale.py b/Lib/locale.py
index 5e963d1f91b..61086983e2d 100644
--- a/Lib/locale.py
+++ b/Lib/locale.py
@@ -598,6 +598,7 @@ locale_encoding_alias = {
     'iso8859_13':                   'ISO8859-13',
     'iso8859_14':                   'ISO8859-14',
     'iso8859_15':                   'ISO8859-15',
+    'iso8859_16':                   'ISO8859-16',
     'iso8859_2':                    'ISO8859-2',
     'iso8859_3':                    'ISO8859-3',
     'iso8859_4':                    'ISO8859-4',