diff --git a/ui/media/js/dnd.js b/ui/media/js/dnd.js
index 4f4fc22a..a7c83cc5 100644
--- a/ui/media/js/dnd.js
+++ b/ui/media/js/dnd.js
@@ -375,7 +375,7 @@ function readUI() {
 }
 function getModelPath(filename, extensions)
 {
-    if (filename === null) {
+    if (typeof filename !== "string") {
         return
     }