diff --git a/lib/build-response.js b/lib/build-response.js
index 6e047b1..025aebc 100644
--- a/lib/build-response.js
+++ b/lib/build-response.js
@@ -18,7 +18,7 @@ module.exports = function send(path, options) {
   } else if (options.cache === 'dynamic') {
     var response, resolve;
     var updatingTimeout;
-    bundle = watchify(bundle, {poll: true, delay: 0});
+    bundle = watchify(bundle, {poll: true, delay: 0, ignoreWatch: true});
     bundle.on('update', function () {
       if (resolve) {
         clearTimeout(updatingTimeout);