diff --git a/hooks/charmhelpers/contrib/charmsupport/nrpe.py b/hooks/charmhelpers/contrib/charmsupport/nrpe.py
index f59fdd6..0626b32 100644
--- a/hooks/charmhelpers/contrib/charmsupport/nrpe.py
+++ b/hooks/charmhelpers/contrib/charmsupport/nrpe.py
@@ -126,7 +126,7 @@ class CheckException(Exception):
 
 
 class Check(object):
-    shortname_re = '[A-Za-z0-9-_.]+$'
+    shortname_re = '[A-Za-z0-9-_.@]+$'
     service_template = ("""
 #---------------------------------------------------
 # This file is Juju managed
diff --git a/hooks/charmhelpers/fetch/archiveurl.py b/hooks/charmhelpers/fetch/archiveurl.py
index dd24f9e..d25587a 100644
--- a/hooks/charmhelpers/fetch/archiveurl.py
+++ b/hooks/charmhelpers/fetch/archiveurl.py
@@ -89,7 +89,7 @@ class ArchiveUrlFetchHandler(BaseFetchHandler):
         :param str source: URL pointing to an archive file.
         :param str dest: Local path location to download archive file to.
         """
-        # propogate all exceptions
+        # propagate all exceptions
         # URLError, OSError, etc
         proto, netloc, path, params, query, fragment = urlparse(source)
         if proto in ('http', 'https'):