diff --git a/confluent_server/confluent/discovery/protocols/pxe.py b/confluent_server/confluent/discovery/protocols/pxe.py
index ef06e53e..baa73c1b 100644
--- a/confluent_server/confluent/discovery/protocols/pxe.py
+++ b/confluent_server/confluent/discovery/protocols/pxe.py
@@ -314,9 +314,9 @@ def proxydhcp(handler, nodeguess):
             optidx = rqv.tobytes().index(b'\x63\x82\x53\x63') + 4
         except ValueError:
             continue
-        hwlen = rqv[2]
-        opts, disco = opts_to_dict(rqv, optidx, 3)
-        disco['hwaddr'] = ':'.join(['{0:02x}'.format(x) for x in rqv[28:28+hwlen]])
+        hwlen = rq[2]
+        opts, disco = opts_to_dict(rq, optidx, 3)
+        disco['hwaddr'] = ':'.join(['{0:02x}'.format(x) for x in rq[28:28+hwlen]])
         node = None
         if disco.get('hwaddr', None) in macmap:
             node = macmap[disco['hwaddr']]