diff --git a/app.py b/app.py
index 2931d48..40b24e4 100644
--- a/app.py
+++ b/app.py
@@ -865,10 +865,10 @@ def upload_video():
         abort(400, description="Keine Datei erhalten")
 
     file = request.files["file"]
-    if not file or file.filename == "":
+    if not file or not file.filename:
         abort(400, description="Keine Datei ausgewaehlt")
 
-    filename = secure_filename(file.filename)
+    filename = secure_filename(file.filename or "")
     if not filename:
         abort(400, description="Ungueltiger Dateiname")
     if not allowed_file(filename):