diff --git a/lib/components/Modal.js b/lib/components/Modal.js
index 59426dda..4efeee1b 100644
--- a/lib/components/Modal.js
+++ b/lib/components/Modal.js
@@ -94,7 +94,7 @@ var Modal = React.createClass({
         this.portal.closeWithTimeout();
       }
 
-      setTimeout(this.removePortal.bind(this), closesAt - now);
+      setTimeout(function() { this.removePortal(); }, closesAt - now);
     } else {
       this.removePortal();
     }