diff --git a/frappy.py b/frappy.py
index 37d81f8..831c04b 100644
--- a/frappy.py
+++ b/frappy.py
@@ -129,6 +129,7 @@ class FrappyControl(MarcheControl):
         raise ValueError('too many frappy servers')
 
     def add_frappy_service(self, service, cfg, port, log=None):
+        """create wrapper file and update marche"""
         if log is None:
             log = Logger('info')
         service, cfgfile = self.cfg_file(self.config.cfgdirs, service, cfg)