diff --git a/main.js b/main.js
index d96d6e5..c43302d 100644
--- a/main.js
+++ b/main.js
@@ -14,12 +14,12 @@ require('./Set')
 require('./Map')
 require('./String')
 require('./RegExp')
+require('./Promise')
 module.patchDate = require('./Date').patchDate
 
 
 // Additional types...
 module.containers = require('./containers')
-module.promise = require('./promise')
 
 
 
diff --git a/package.json b/package.json
index e6e2224..7c09cfe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ig-types",
-  "version": "2.1.0",
+  "version": "3.0.0",
   "description": "Generic JavaScript types and type extensions...",
   "main": "main.js",
   "scripts": {
diff --git a/promise.js b/promise.js
index 1950fbe..08ef504 100644
--- a/promise.js
+++ b/promise.js
@@ -12,8 +12,8 @@ var object = require('ig-object')
 
 /*********************************************************************/
 
-var CooperativePromise =
 module.CooperativePromise =
+Promise.cooperative =
 object.Constructor('CooperativePromise', Promise, {
 	// XXX do we actually need this???
 	__promise: null,