diff --git a/src/core/renderers/SystemRenderer.js b/src/core/renderers/SystemRenderer.js
index f65d371..ec1a9e7 100644
--- a/src/core/renderers/SystemRenderer.js
+++ b/src/core/renderers/SystemRenderer.js
@@ -272,4 +272,8 @@
     this._backgroundColor = 0;
     this._backgroundColorRgba = null;
     this._backgroundColorString = null;
+
+    this.backgroundColor = 0;
+    this._tempDisplayObjectParent = null;
+    this._lastObjectRendered = null;
 };

diff --git a/src/core/renderers/SystemRenderer.js b/src/core/renderers/SystemRenderer.js
index f65d371..ec1a9e7 100644
--- a/src/core/renderers/SystemRenderer.js
+++ b/src/core/renderers/SystemRenderer.js
@@ -272,4 +272,8 @@
     this._backgroundColor = 0;
     this._backgroundColorRgba = null;
     this._backgroundColorString = null;
+
+    this.backgroundColor = 0;
+    this._tempDisplayObjectParent = null;
+    this._lastObjectRendered = null;
 };
diff --git a/src/core/renderers/webgl/WebGLRenderer.js b/src/core/renderers/webgl/WebGLRenderer.js
index ed9ba93..efd936a 100644
--- a/src/core/renderers/webgl/WebGLRenderer.js
+++ b/src/core/renderers/webgl/WebGLRenderer.js
@@ -42,7 +42,6 @@
     options = options || {};
 
     SystemRenderer.call(this, 'WebGL', width, height, options);
-
     /**
      * The type of this renderer as a standardised const
      *
@@ -440,5 +439,5 @@
     this.gl.getExtension('WEBGL_lose_context').loseContext();
     this.gl = null;
 
-    this = null;
+    // this = null;
 };