diff --git a/src/core/renderers/webgl/utils/RenderTarget.js b/src/core/renderers/webgl/utils/RenderTarget.js
index 382e4e1..f664c07 100644
--- a/src/core/renderers/webgl/utils/RenderTarget.js
+++ b/src/core/renderers/webgl/utils/RenderTarget.js
@@ -311,6 +311,7 @@
 RenderTarget.prototype.destroy = function ()
 {
     var gl = this.gl;
+    gl.deleteRenderBuffer( this.stencilBuffer );
     gl.deleteFramebuffer( this.frameBuffer );
     gl.deleteTexture( this.texture );