diff --git a/README.md b/README.md
index 5346e5f..8a5338d 100644
--- a/README.md
+++ b/README.md
@@ -41,34 +41,34 @@ from zk import ZK, const
 conn = None
 zk = ZK('192.168.1.201', port=4370, timeout=5, password=0, force_udp=False, ommit_ping=False)
 try:
-print ('Connecting to device ...')
-conn = zk.connect()
-print ('Disabling device ...')
-conn.disable_device()
-print ('Firmware Version: : {}'.format(conn.get_firmware_version()))
-# print '--- Get User ---'
-users = conn.get_users()
-for user in users:
-privilege = 'User'
-if user.privilege == const.USER_ADMIN:
-privilege = 'Admin'
+    print ('Connecting to device ...')
+    conn = zk.connect()
+    print ('Disabling device ...')
+    conn.disable_device()
+    print ('Firmware Version: : {}'.format(conn.get_firmware_version()))
+    # print '--- Get User ---'
+    users = conn.get_users()
+    for user in users:
+        privilege = 'User'
+        if user.privilege == const.USER_ADMIN:
+            privilege = 'Admin'
 
-print ('- UID #{}'.format(user.uid))
-print ('  Name       : {}'.format(user.name))
-print ('  Privilege  : {}'.format(privilege))
-print ('  Password   : {}'.format(user.password))
-print ('  Group ID   : {}'.format(user.group_id))
-print ('  User  ID   : {}'.format(user.user_id))
+        print ('- UID #{}'.format(user.uid))
+        print ('  Name       : {}'.format(user.name))
+        print ('  Privilege  : {}'.format(privilege))
+        print ('  Password   : {}'.format(user.password))
+        print ('  Group ID   : {}'.format(user.group_id))
+        print ('  User  ID   : {}'.format(user.user_id))
 
-print ("Voice Test ...")
-conn.test_voice()
-print ('Enabling device ...')
-conn.enable_device()
+    print ("Voice Test ...")
+    conn.test_voice()
+    print ('Enabling device ...')
+    conn.enable_device()
 except Exception as e:
-print ("Process terminate : {}".format(e))
+    print ("Process terminate : {}".format(e))
 finally:
-if conn:
-conn.disconnect()
+    if conn:
+        conn.disconnect()
 ```
 
 * Connect/Disconnect