diff --git a/shadowsocks/shell.py b/shadowsocks/shell.py
index e5f5bb5..4c747ac 100644
--- a/shadowsocks/shell.py
+++ b/shadowsocks/shell.py
@@ -130,11 +130,11 @@ def get_config(is_local):
     logging.basicConfig(level=logging.INFO,
                         format='%(levelname)-s: %(message)s')
     if is_local:
-        shortopts = 'hd:s:b:p:k:l:m:c:t:vq'
+        shortopts = 'hd:s:b:p:k:l:m:o:c:t:vq'
         longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'user=',
                     'version']
     else:
-        shortopts = 'hd:s:p:k:m:c:t:vq'
+        shortopts = 'hd:s:p:k:m:o:c:t:vq'
         longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'workers=',
                     'forbidden-ip=', 'user=', 'manager-address=', 'version']
     try:
@@ -168,6 +168,8 @@ def get_config(is_local):
                 config['server'] = to_str(value)
             elif key == '-m':
                 config['method'] = to_str(value)
+            elif key == '-o':
+                config['obfs'] = to_str(value)
             elif key == '-b':
                 config['local_address'] = to_str(value)
             elif key == '-v':
@@ -286,6 +288,7 @@ Proxy options:
   -l LOCAL_PORT          local port, default: 1080
   -k PASSWORD            password
   -m METHOD              encryption method, default: aes-256-cfb
+  -o OBFS                obfsplugin, default: http_simple
   -t TIMEOUT             timeout in seconds, default: 300
   --fast-open            use TCP_FASTOPEN, requires Linux 3.7+
 
@@ -315,6 +318,7 @@ Proxy options:
   -p SERVER_PORT         server port, default: 8388
   -k PASSWORD            password
   -m METHOD              encryption method, default: aes-256-cfb
+  -o OBFS                obfsplugin, default: http_simple
   -t TIMEOUT             timeout in seconds, default: 300
   --fast-open            use TCP_FASTOPEN, requires Linux 3.7+
   --workers WORKERS      number of workers, available on Unix/Linux