diff --git a/qinling/utils/etcd_util.py b/qinling/utils/etcd_util.py
index 586e4592..82fa635e 100644
--- a/qinling/utils/etcd_util.py
+++ b/qinling/utils/etcd_util.py
@@ -24,12 +24,17 @@ def get_client(conf=None):
     conf = conf or CONF
 
     if not CLIENT:
-        CLIENT = etcd3gw.client(host=conf.etcd.host,
-                                port=conf.etcd.port,
-                                protocol=conf.etcd.protocol,
-                                ca_cert=conf.etcd.ca_cert,
-                                cert_cert=conf.etcd.cert_file,
-                                cert_key=conf.etcd.cert_key)
+        if conf.etcd.protocol == "https":
+            CLIENT = etcd3gw.client(host=conf.etcd.host,
+                                    port=conf.etcd.port,
+                                    protocol=conf.etcd.protocol,
+                                    ca_cert=conf.etcd.ca_cert,
+                                    cert_cert=conf.etcd.cert_file,
+                                    cert_key=conf.etcd.cert_key)
+        else:
+            CLIENT = etcd3gw.client(host=conf.etcd.host,
+                                    port=conf.etcd.port,
+                                    protocol=conf.etcd.protocol)
 
     return CLIENT