diff --git a/babel/core.py b/babel/core.py
index 6df585083..4cceba933 100644
--- a/babel/core.py
+++ b/babel/core.py
@@ -29,6 +29,7 @@
         "currency_fractions",
         "language_aliases",
         "likely_subtags",
+        "meta_zones",
         "parent_exceptions",
         "script_aliases",
         "territory_aliases",