diff --git a/models/stopwatch.js b/models/stopwatch.js
index 29ace51..d0be3a9 100644
--- a/models/stopwatch.js
+++ b/models/stopwatch.js
@@ -20,7 +20,7 @@ function Stopwatch() {
 
     // Use Underscore to bind all of our methods
     // to the proper context
-    _.bindAll(this);
+    _.bindAll(this, 'start', 'stop', 'reset', 'onTick', 'formatTime', 'getTime');
 };
 
 // ---------------------------------------------
@@ -102,4 +102,4 @@ Stopwatch.prototype.getTime = function() {
 // ---------------------------------------------
 // Export
 // ---------------------------------------------
-module.exports = Stopwatch;
\ No newline at end of file
+module.exports = Stopwatch;