diff --git a/editor/js/Editor.js b/editor/js/Editor.js
index c892be6fdf5033e8fc193d389660e79296976021..df76708681348b369cb970f145812127f27558bd 100644
--- a/editor/js/Editor.js
+++ b/editor/js/Editor.js
@@ -132,8 +132,7 @@ Editor.prototype = {
 		this.scene.name = scene.name;
 
 		this.scene.background = scene.background;
-
-		if ( scene.fog !== null ) this.scene.fog = scene.fog.clone();
+		this.scene.fog = scene.fog;
 
 		this.scene.userData = JSON.parse( JSON.stringify( scene.userData ) );