diff --git a/examples/jsm/loaders/GLTFLoader.js b/examples/jsm/loaders/GLTFLoader.js
index fdf43f7d47df0a..6c847c5a71da15 100644
--- a/examples/jsm/loaders/GLTFLoader.js
+++ b/examples/jsm/loaders/GLTFLoader.js
@@ -222,6 +222,12 @@ class GLTFLoader extends Loader {
 
 		} );
 
+		this.register( function () {
+
+			return new GLTFMaterialsUnlitExtension();
+
+		});
+
 		this.register( function ( parser ) {
 
 			return new GLTFLightsExtension( parser );