diff --git a/cista/app.py b/cista/app.py
index 2bf7e93..a2e643e 100644
--- a/cista/app.py
+++ b/cista/app.py
@@ -239,10 +239,8 @@ async def zip_download(req, keys, zipfile, ext):
 
     def worker():
         try:
-            with open("test2.zip", "wb") as f:
-                for chunk in stream_zip(local_files(files)):
-                    f.write(chunk)
-                    asyncio.run_coroutine_threadsafe(queue.put(chunk), loop).result()
+            for chunk in stream_zip(local_files(files)):
+                asyncio.run_coroutine_threadsafe(queue.put(chunk), loop).result()
         except Exception:
             logging.exception("Error streaming ZIP")
             raise