diff --git a/README.md b/README.md
index 87621ed..912cc85 100644
--- a/README.md
+++ b/README.md
@@ -96,6 +96,7 @@ provider | which storage provider to use | (s3, gdrive or local) |
 aws-access-key | aws access key | | AWS_ACCESS_KEY
 aws-secret-key | aws access key | | AWS_SECRET_KEY
 bucket | aws bucket | | BUCKET
+s3-endpoint | Custom S3 endpoint. | |
 s3-region | region of the s3 bucket | eu-west-1 | S3_REGION
 s3-no-multipart | disables s3 multipart upload | false | |
 s3-path-style | Forces path style URLs, required for Minio. | false | |
diff --git a/server/storage.go b/server/storage.go
index 78f17c7..e256136 100644
--- a/server/storage.go
+++ b/server/storage.go
@@ -243,9 +243,7 @@ func (s *S3Storage) Put(token string, filename string, reader io.Reader, content
 
 	// Create an uploader with the session and custom options
 	uploader := s3manager.NewUploader(s.session, func(u *s3manager.Uploader) {
-		u.PartSize = (1 << 20) * 5  // The minimum/default allowed part size is 5MB
 		u.Concurrency = concurrency // default is 5
-		u.MaxUploadParts = concurrency
 		u.LeavePartsOnError = false
 	})