diff --git a/package.json b/package.json
index 7c09cfe..d9f8111 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ig-types",
-  "version": "3.0.0",
+  "version": "3.0.1",
   "description": "Generic JavaScript types and type extensions...",
   "main": "main.js",
   "scripts": {
diff --git a/promise.js b/promise.js
index 08ef504..37b984b 100644
--- a/promise.js
+++ b/promise.js
@@ -12,6 +12,7 @@ var object = require('ig-object')
 
 /*********************************************************************/
 
+var CooperativePromise =
 module.CooperativePromise =
 Promise.cooperative =
 object.Constructor('CooperativePromise', Promise, {