diff --git a/package-overrides/npm/zone.js@0.4.2.json b/package-overrides/npm/zone.js@0.4.2.json
new file mode 100644
index 0000000..36bb32a
--- /dev/null
+++ b/package-overrides/npm/zone.js@0.4.2.json
@@ -0,0 +1,3 @@
+{
+    "format": "global"
+}
diff --git a/registry.json b/registry.json
index 9017906..c83e23c 100644
--- a/registry.json
+++ b/registry.json
@@ -286,6 +286,7 @@
   "xlsjs": "github:SheetJS/js-xls",
   "xlsx": "github:SheetJS/js-xlsx",
   "zlib": "github:jspm/nodelibs-zlib",
+  "zone.js": "npm:zone.js",
   "zygo": "github:zygo-io/zygo",
   "zygo-blog": "github:zygo-io/zygo-blog"
 }