diff --git a/resources/mmv/mmv.bootstrap.js b/resources/mmv/mmv.bootstrap.js
index 870033021..5d972fdaf 100644
--- a/resources/mmv/mmv.bootstrap.js
+++ b/resources/mmv/mmv.bootstrap.js
@@ -180,7 +180,7 @@
 			link = $link.prop( 'href' ),
 			alt = $thumb.attr( 'alt' );
 
-		if ( !( title.getExtension().toLowerCase() in bs.validExtensions ) ) {
+		if ( !title || !title.getExtension() || !( title.getExtension().toLowerCase() in bs.validExtensions ) ) {
 			return;
 		}