diff --git a/tests/unit-tests/NFD/ncc.t.cpp b/tests/unit-tests/NFD/ncc.t.cpp
index b7bd801..e53e00e 100644
--- a/tests/unit-tests/NFD/ncc.t.cpp
+++ b/tests/unit-tests/NFD/ncc.t.cpp
@@ -33,7 +33,7 @@
   {
     Config::SetDefault("ns3::PointToPointNetDevice::DataRate", StringValue("10Mbps"));
     Config::SetDefault("ns3::PointToPointChannel::Delay", StringValue("1ms"));
-    Config::SetDefault("ns3::QueueBase::MaxPackets", UintegerValue(500));
+    Config::SetDefault("ns3::QueueBase::MaxSize", StringValue("500p"));
 
       //            Creating a 3 node topology                //
       //                                                      //