diff --git a/qcloud_cos/cos_comm.py b/qcloud_cos/cos_comm.py
index dd1c3c37..612e5b96 100644
--- a/qcloud_cos/cos_comm.py
+++ b/qcloud_cos/cos_comm.py
@@ -54,7 +54,8 @@
             'SSECustomerAlgorithm': 'x-cos-server-side-encryption-customer-algorithm',
             'SSECustomerKey': 'x-cos-server-side-encryption-customer-key',
             'SSECustomerKeyMD5': 'x-cos-server-side-encryption-customer-key-MD5',
-            'SSEKMSKeyId': 'x-cos-server-side-encryption-cos-kms-key-id'
+            'SSEKMSKeyId': 'x-cos-server-side-encryption-cos-kms-key-id',
+            'Referer': 'Referer'
            }