1 files changed, 1 insertions, 1 deletions

diff --git a/js/helper-classes/RDGE/Materials/ZInvertMaterial.js b/js/helper-classes/RDGE/Materials/ZInvertMaterial.js
index 2ac8920f..c25290e3 100644
--- a/js/helper-classes/RDGE/Materials/ZInvertMaterial.js
+++ b/js/helper-classes/RDGE/Materials/ZInvertMaterial.js
@@ -71,7 +71,7 @@ function ZInvertMaterial()
                 this._shader.init();
 
                 // set up the material node
-                this._materialNode = createMaterialNode("zInvertMaterial");
+                this._materialNode = createMaterialNode("zInvertMaterial_" + world.generateUniqueNodeID());
                 this._materialNode.setShader(this._shader);
 
                 this._time = 0;