--- a/pvl/dhcp/config.py	Thu Feb 26 14:39:42 2015 +0200
+++ b/pvl/dhcp/config.py	Thu Feb 26 14:40:14 2015 +0200
@@ -230,8 +230,6 @@
         "foo bar"
     """
 
-    value = str(value)
-
     if any(c.isspace() for c in value):
         # quoted
         return '"{value}"'.format(value=value)