diff --git a/lib/context.js b/lib/context.js
index 4836682..c5f0148 100644
--- a/lib/context.js
+++ b/lib/context.js
@@ -130,7 +130,6 @@ var proto = module.exports = {
 delegate(proto, 'response')
   .method('attachment')
   .method('redirect')
-  .method('append')
   .method('remove')
   .method('vary')
   .method('set')