diff --git a/fileserver/fileserver.py b/fileserver/fileserver.py
index a150fde..a895580 100644
--- a/fileserver/fileserver.py
+++ b/fileserver/fileserver.py
@@ -36,7 +36,7 @@
     "fileserver.download.cache_timeout_sec", 5 * 60
 )
 if max_upload_size := config.get("fileserver.upload.max_upload_size_mb", None):
-    app.config["MAX_CONTENT_LENGTH"] = max_upload_size * 1024
+    app.config["MAX_CONTENT_LENGTH"] = max_upload_size * 1024 * 1024
 
 auth_handler = AuthHandler.instance()