diff --git a/api_server.py b/api_server.py
index fc5daa5..349cc51 100644
--- a/api_server.py
+++ b/api_server.py
@@ -36,7 +36,6 @@ from url_signer import verify_media_digest, generate_media_digest
 # Define custom exception for zero-size files
 class ZeroSizeFileError(Exception):
     """Custom exception for zero-size files found or downloaded."""
-    pass
 
 class RequestLoggingMiddleware(BaseHTTPMiddleware):
     async def dispatch(self, request: Request, call_next):