--- a/pvl/dhcp/tests.py	Mon Mar 02 19:45:56 2015 +0200
+++ b/pvl/dhcp/tests.py	Mon Mar 02 19:58:12 2015 +0200
@@ -156,7 +156,7 @@
                         ('hardware', 'ethernet', '00:11:22:33:44:55'),
                     ]),
                     config.Block(None, [
-                        ('subclass', 'debian', config.Field('1:00:11:22:33:44:55')),
+                        ('subclass', config.String('debian'), config.Field('1:00:11:22:33:44:55')),
                     ]),
                 ])),
                 """
@@ -165,6 +165,6 @@
     fixed-address       192.0.2.1;
     hardware ethernet   00:11:22:33:44:55;
 }
-subclass debian 1:00:11:22:33:44:55;
+subclass "debian" 1:00:11:22:33:44:55;
                 """.strip().splitlines()
         )