diff --git a/examples/jsm/loaders/GLTFLoader.js b/examples/jsm/loaders/GLTFLoader.js
index 6e62de0d8cecc9..af826a55d33d38 100644
--- a/examples/jsm/loaders/GLTFLoader.js
+++ b/examples/jsm/loaders/GLTFLoader.js
@@ -2525,6 +2525,7 @@ function getImageURIMimeType( uri ) {
 
 	if ( uri.search( /\.jpe?g($|\?)/i ) > 0 || uri.search( /^data\:image\/jpeg/ ) === 0 ) return 'image/jpeg';
 	if ( uri.search( /\.webp($|\?)/i ) > 0 || uri.search( /^data\:image\/webp/ ) === 0 ) return 'image/webp';
+	if ( uri.search( /\.ktx2($|\?)/i ) > 0 || uri.search( /^data\:image\/ktx2/ ) === 0 ) return 'image/ktx2';
 
 	return 'image/png';