diff --git a/programs/cmm/examples/Tupfile.lua b/programs/cmm/examples/Tupfile.lua
index 2b76c704aa..3f28e56d65 100644
--- a/programs/cmm/examples/Tupfile.lua
+++ b/programs/cmm/examples/Tupfile.lua
@@ -3,6 +3,6 @@ if tup.getconfig("LANG") == "ru"
 then C_LANG = "LANG_RUS"
 else C_LANG = "LANG_ENG" -- this includes default case without config
 end
-tup.rule("example.c", "c-- /D=AUTOBUILD /D=$(C_LANG) %f" .. tup.getconfig("KPACK_CMD"), "example.com")
+tup.rule("window.c", "c-- /D=AUTOBUILD /D=$(C_LANG) %f" .. tup.getconfig("KPACK_CMD"), "window.com")
 tup.rule("collections.c", "c-- /D=AUTOBUILD /D=$(C_LANG) %f" .. tup.getconfig("KPACK_CMD"), "collections.com")
 tup.rule("menu.c", "c-- /D=AUTOBUILD /D=$(C_LANG) %f" .. tup.getconfig("KPACK_CMD"), "menu.com")