diff --git a/examples/webgl_tonemapping.html b/examples/webgl_tonemapping.html
index aefbc04da8ce7c..8e306c1e40e2a1 100644
--- a/examples/webgl_tonemapping.html
+++ b/examples/webgl_tonemapping.html
@@ -127,7 +127,6 @@
 						updateGUI();
 
 						renderer.toneMapping = toneMappingOptions[ params.toneMapping ];
-						mesh.material.needsUpdate = true;
 						render();
 
 					} );