diff --git a/weed/command/filer.go b/weed/command/filer.go
index 053c5a147..1e4b065cd 100644
--- a/weed/command/filer.go
+++ b/weed/command/filer.go
@@ -122,6 +122,7 @@ func init() {
 	filerS3Options.auditLogConfig = cmdFiler.Flag.String("s3.auditLogConfig", "", "path to the audit log config file")
 	filerS3Options.allowEmptyFolder = cmdFiler.Flag.Bool("s3.allowEmptyFolder", true, "allow empty folders")
 	filerS3Options.allowDeleteBucketNotEmpty = cmdFiler.Flag.Bool("s3.allowDeleteBucketNotEmpty", true, "allow recursive deleting all entries along with bucket")
+	filerS3Options.allowDeleteObjectsByTTL = cmdFiler.Flag.Bool("s3.allowDeleteObjectsByTTL", false, "allow deleting all expired entries")
 	filerS3Options.localSocket = cmdFiler.Flag.String("s3.localSocket", "", "default to /tmp/seaweedfs-s3-<port>.sock")
 	filerS3Options.tlsCACertificate = cmdFiler.Flag.String("s3.cacert.file", "", "path to the TLS CA certificate file")
 	filerS3Options.tlsVerifyClientCert = cmdFiler.Flag.Bool("s3.tlsVerifyClientCert", false, "whether to verify the client's certificate")
diff --git a/weed/command/server.go b/weed/command/server.go
index 8c99d04fd..bef5816a4 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -165,6 +165,7 @@ func init() {
 	s3Options.auditLogConfig = cmdServer.Flag.String("s3.auditLogConfig", "", "path to the audit log config file")
 	s3Options.allowEmptyFolder = cmdServer.Flag.Bool("s3.allowEmptyFolder", true, "allow empty folders")
 	s3Options.allowDeleteBucketNotEmpty = cmdServer.Flag.Bool("s3.allowDeleteBucketNotEmpty", true, "allow recursive deleting all entries along with bucket")
+	s3Options.allowDeleteObjectsByTTL = cmdServer.Flag.Bool("allowDeleteObjectsByTTL", false, "allow deleting all expired entries")
 	s3Options.localSocket = cmdServer.Flag.String("s3.localSocket", "", "default to /tmp/seaweedfs-s3-<port>.sock")
 	s3Options.bindIp = cmdServer.Flag.String("s3.ip.bind", "", "ip address to bind to. If empty, default to same as -ip.bind option.")
 	s3Options.idleTimeout = cmdServer.Flag.Int("s3.idleTimeout", 10, "connection idle seconds")
diff --git a/weed/s3api/s3_constants/header.go b/weed/s3api/s3_constants/header.go
index 82a270111..77ed310d9 100644
--- a/weed/s3api/s3_constants/header.go
+++ b/weed/s3api/s3_constants/header.go
@@ -42,6 +42,7 @@ const (
 	SeaweedFSIsDirectoryKey = "X-Seaweedfs-Is-Directory-Key"
 	SeaweedFSPartNumber     = "X-Seaweedfs-Part-Number"
 	SeaweedFSUploadId       = "X-Seaweedfs-Upload-Id"
+	SeaweedFSExpiresS3      = "X-Seaweedfs-Expires-S3"
 
 	// S3 ACL headers
 	AmzCannedAcl      = "X-Amz-Acl"