diff --git a/bugz/bugzilla.py b/bugz/bugzilla.py
index d03a8fc..c7233e0 100644
--- a/bugz/bugzilla.py
+++ b/bugz/bugzilla.py
@@ -539,7 +539,7 @@ def modify(self, bugid, title = None, comment = None, url = None,
 
 		# copy existing fields
 		FIELDS = ('bug_file_loc', 'bug_severity', 'short_desc', 'bug_status',
-				'status_whiteboard', 'keywords',
+				'status_whiteboard', 'keywords', 'token',
 				'op_sys', 'priority', 'version', 'target_milestone',
 				'assigned_to', 'rep_platform', 'product', 'component', 'token')