diff --git a/lib/parser.js b/lib/parser.js
index 07ebef98..7fa2fc58 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -35,7 +35,7 @@
     var descriptor;
     descriptor = Object.create(null);
     descriptor.value = value;
-    descriptor.writeable = true;
+    descriptor.writable = true;
     descriptor.enumerable = true;
     descriptor.configurable = true;
     return Object.defineProperty(obj, key, descriptor);
diff --git a/src/parser.coffee b/src/parser.coffee
index a478a857..dade8f39 100644
--- a/src/parser.coffee
+++ b/src/parser.coffee
@@ -19,7 +19,7 @@ defineProperty = (obj, key, value) ->
   # make sure the descriptor hasn't been prototype polluted
   descriptor = Object.create null
   descriptor.value = value
-  descriptor.writeable = true
+  descriptor.writable = true
   descriptor.enumerable = true
   descriptor.configurable = true
   Object.defineProperty obj, key, descriptor