diff --git a/s3_storage_provider.py b/s3_storage_provider.py
index ad9c95d..1ec4951 100644
--- a/s3_storage_provider.py
+++ b/s3_storage_provider.py
@@ -118,7 +118,7 @@ class _S3DownloadThread(threading.Thread):
         try:
             resp = s3.get_object(Bucket=self.bucket, Key=self.key)
         except botocore.exceptions.ClientError as e:
-            if e.response['Error']['Code'] == "404":
+            if e.response['Error']['Code'] in ("404", "NoSuchKey",):
                 reactor.callFromThread(self.deferred.callback, None)
                 return