diff --git a/examples/wscript b/examples/wscript
index 31127c9..5c478a7 100644
--- a/examples/wscript
+++ b/examples/wscript
@@ -6,9 +6,6 @@
 
     obj = bld.create_ns3_program('ndn-grid', ['ndnSIM', 'point-to-point-layout'])
     obj.source = 'ndn-grid.cc'
-
-    obj = bld.create_ns3_program('trie', ['ndnSIM'])
-    obj.source = 'trie.cc'
     
     if 'topology' in bld.env['NDN_plugins']:
         obj = bld.create_ns3_program('ndn-grid-topo-plugin', ['ndnSIM'])
@@ -16,3 +13,9 @@
 
         obj = bld.create_ns3_program('ndn-congestion-topo-plugin', ['ndnSIM'])
         obj.source = 'ndn-congestion-topo-plugin.cc'
+
+        obj = bld.create_ns3_program('ndn-congestion-alt-topo-plugin', ['ndnSIM'])
+        obj.source = [
+            'custom-strategies/custom-strategy.cc',
+            'ndn-congestion-alt-topo-plugin.cc'
+            ]