diff --git a/Lib/locale.py b/Lib/locale.py
index 7f990a7..dffb6cb 100644
--- a/Lib/locale.py
+++ b/Lib/locale.py
@@ -1216,6 +1216,12 @@
 # http://msdn.microsoft.com/library/default.asp?url=/library/en-us/intl/nls_238z.asp
 # to include every locale up to Windows XP.
 #
+# NOTE: this mapping is incomplete.  If your language is missing, please
+# submit a bug report to Python bug manager, which you can find via:
+#     http://www.python.org/dev/
+# Make sure you include the missing language identifier and the suggested
+# locale code.
+#
 
 windows_locale = {
     0x0436: "af_ZA", # Afrikaans