diff --git a/app/js/directives/chart.js b/app/js/directives/chart.js
index 3321dec3..d8452272 100644
--- a/app/js/directives/chart.js
+++ b/app/js/directives/chart.js
@@ -214,7 +214,7 @@ function chart($window) {
     };
 
     /**
-     * Request an animation frame from the browser, and call all regsitered
+     * Request an animation frame from the browser, and call all registered
      * animation callbacks when it occurs. If an animation has already been
      * requested but has not completed, this method will return immediately.
      */