diff --git a/api/src/processing/create-filename.js b/api/src/processing/create-filename.js
index e8093d1f..d1758c00 100644
--- a/api/src/processing/create-filename.js
+++ b/api/src/processing/create-filename.js
@@ -24,7 +24,9 @@ export default (f, style, isAudioOnly, isAudioMuted) => {
         default:
         case "classic":
             if (isAudioOnly) {
-                infoBase.push(f.youtubeDubName);
+                if (f.youtubeDubName) {
+                    infoBase.push(f.youtubeDubName);
+                }
                 return `${infoBase.join("_")}_audio`;
             }
             filename = classicTags.join("_");