diff --git a/lib/Instance.js b/lib/Instance.js
index 68f624b8..d2984f75 100755
--- a/lib/Instance.js
+++ b/lib/Instance.js
@@ -489,7 +489,7 @@ function Instance(Model, opts) {
 		Object.defineProperty(instance, k, {
 			value      : opts.methods[k].bind(instance),
 			enumerable : false,
-			writeable  : true
+			writable  : true
 		});
 	}