diff --git a/event.js b/event.js
index e9dfe57..44f30b1 100644
--- a/event.js
+++ b/event.js
@@ -120,6 +120,8 @@ object.Constructor('Eventful', {
 				Object.defineProperty(context, '__event_handlers__', {
 						value: {[this.name]: (handlers = [])},
 						enumerable: false,
+						configurable: true,
+						writable: true,
 					}) 
 					&& handlers
 				: (context.__event_handlers__[this.name] = 
@@ -293,6 +295,8 @@ module.EventHandlerMixin = object.Mixin('EventHandlerMixin', {
 				&& Object.defineProperty(this, '__event_handlers__', {
 					value: {},
 					enumerable: false,
+					configurable: true,
+					writable: true,
 				})
 			;(this.__event_handlers__[evt] = 
 					this.__event_handlers__[evt] || [])
diff --git a/package.json b/package.json
index 2618078..f601969 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ig-types",
-  "version": "6.16.0",
+  "version": "6.16.1",
   "description": "Generic JavaScript types and type extensions...",
   "main": "main.js",
   "scripts": {