diff --git a/letsencrypt/cli.py b/letsencrypt/cli.py
index 84723da3c..dc095a42e 100644
--- a/letsencrypt/cli.py
+++ b/letsencrypt/cli.py
@@ -1294,6 +1294,7 @@ class WebrootPathProcessor(argparse.Action): # pylint: disable=missing-docstring
                                "them must precede all domain flags")
         config.webroot_path.append(webroot)
 
+
 _undot = lambda domain: domain[:-1] if domain.endswith('.') else domain
 
 def _process_domain(config, domain_arg, webroot_path=None):
@@ -1317,7 +1318,7 @@ class WebrootMapProcessor(argparse.Action): # pylint: disable=missing-docstring
     def __call__(self, parser, config, webroot_map_arg, option_string=None):
         webroot_map = json.loads(webroot_map_arg)
         for domains, webroot_path in webroot_map.iteritems():
-            _process_domain(config, str(domains), [str(webroot_path)])
+            _process_domain(config, domains, [webroot_path])
 
 
 class DomainFlagProcessor(argparse.Action): # pylint: disable=missing-docstring