diff --git a/Modules/Setup.in b/Modules/Setup.in
index 45bdbac..839cc09 100644
--- a/Modules/Setup.in
+++ b/Modules/Setup.in
@@ -134,6 +134,10 @@
 struct structmodule.c	# binary structure packing/unpacking
 time timemodule.c # -lm # time operations and variables
 operator operator.c	# operator.add() and similar goodies
+_codecs _codecsmodule.c	# access to the builtin codecs and codec registry
+
+unicodedata unicodedata.c unicodedatabase.c
+                        # static Unicode character database
 
 #_locale _localemodule.c  # access to ISO C locale support