--- a/src/topology-read/wscript	Wed Sep 07 12:18:37 2011 -0700
+++ b/src/topology-read/wscript	Thu Sep 08 16:13:40 2011 +0100
@@ -15,7 +15,7 @@
         'test/rocketfuel-topology-reader-test-suite.cc',
         ]
 
-    headers = bld.new_task_gen('ns3header')
+    headers = bld.new_task_gen(features=['ns3header'])
     headers.module = 'topology-read'
     headers.source = [
        'model/topology-reader.h',