diff --git a/lib/response/index.js b/lib/response/index.js
index 59e8f81d2..e382a1bae 100755
--- a/lib/response/index.js
+++ b/lib/response/index.js
@@ -71,7 +71,7 @@ exports._generate = function (result, onSend) {
             response = new internals.Buffer(result);
         }
         else if (result.isHapiResponse ||
-                result instanceof Boom) {
+                result.isBoom) {
 
             response = result;
         }