diff --git a/includes/GlModelViewer.php b/includes/GlModelViewer.php
index 0cf3b56..e1f257e 100644
--- a/includes/GlModelViewer.php
+++ b/includes/GlModelViewer.php
@@ -2,13 +2,13 @@
 
 class GlModelViewer extends ImageHandler {
   public static function onMimeMagicInit(MimeAnalyzer $mime) {
-    $mime->addExtraTypes('application/gltf glb gltf');
-    $mime->addExtraInfo('application/gltf [DRAWING]');
+    $mime->addExtraTypes('model/gltf-binary glb gltf');
+    $mime->addExtraInfo('model/gltf-binary [DRAWING]');
   }
 
   public static function onMimeMagicImproveFromExtension( MimeAnalyzer $mimeAnalyzer, $ext, &$mime ) {
-	  if ( $mime !== 'application/gltf' && in_array( $ext, ['glb', 'gltf'] ) ) {
-		  $mime = 'application/gltf';
+	  if ( $mime !== 'model/gltf-binary' && in_array( $ext, ['glb', 'gltf'] ) ) {
+		  $mime = 'model/gltf-binary';
 	  }
   }