diff --git a/src/chart.js b/src/chart.js
index 0ee96bd57d4..591572110e8 100644
--- a/src/chart.js
+++ b/src/chart.js
@@ -56,4 +56,7 @@ plugins.push(require('./plugins/plugin.filler.js')(Chart));
 
 Chart.plugins.register(plugins);
 
-window.Chart = module.exports = Chart;
+module.exports = Chart;
+if (typeof window !== 'undefined') {
+	window.Chart = Chart;
+}
diff --git a/src/core/core.helpers.js b/src/core/core.helpers.js
index 2d96ac14b47..5ed5c28edd4 100644
--- a/src/core/core.helpers.js
+++ b/src/core/core.helpers.js
@@ -669,6 +669,11 @@ module.exports = function(Chart) {
 	};
 	// Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
 	helpers.requestAnimFrame = (function() {
+		if (typeof window === 'undefined') {
+			return function(callback) {
+				callback();
+			};
+		}
 		return window.requestAnimationFrame ||
 			window.webkitRequestAnimationFrame ||
 			window.mozRequestAnimationFrame ||