diff --git a/test/browser/TestDemo.js b/test/browser/TestDemo.js
index 31a968a..5f23081 100644
--- a/test/browser/TestDemo.js
+++ b/test/browser/TestDemo.js
@@ -64,6 +64,7 @@ var test = function(status) {
             _demo.engine.render = {};
             _demo.engine.render.options = {};
             _demo.runner = runner;
+            _demo.render = { options: {} };
             _demo.mouseConstraint = Matter.MouseConstraint.create(engine);
 
             Matter.Demo.reset(_demo);
diff --git a/test/node/TestDemo.js b/test/node/TestDemo.js
index 965988e..59af310 100644
--- a/test/node/TestDemo.js
+++ b/test/node/TestDemo.js
@@ -50,6 +50,7 @@ var test = function() {
         _demo.engine.render = {};
         _demo.engine.render.options = {};
         _demo.runner = runner;
+        _demo.render = { options: {} };
 
         if (!(demo in Matter.Example)) {
             throw '\'' + demo + '\' is not defined in Matter.Example';