diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index fc20b1a0d56fca1c5d83fe8a1075879e84feee0a..8cfaa0a0cb3d19eaba18d7e4bb5d7858366990ba 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -3837,7 +3837,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 		objlist[id] = objlist[id] || [];
 		objlist[id].push(
 			{
-				id: null,
+				id: id,
 				buffer: buffer,
 				object: object,
 				material: null,