diff --git a/index.js b/index.js
index <HASH>..<HASH> 100644
--- a/index.js
+++ b/index.js
@@ -147,7 +147,7 @@ function serveManifest(paths, opts, callback) {
           watchers.push(watcher);

           checkReady();

         },

-        catchupDelay: 500

+        catchupDelay: ('catchupDelay' in opts) ? opts['catchupDelay'] : 500

       });

     });

   }
Allow opts to override the catchupDelay value