diff --git a/utils/tracers/l2-rate-tracer.cc b/utils/tracers/l2-rate-tracer.cc
index 48d2589..a4c86b9 100644
--- a/utils/tracers/l2-rate-tracer.cc
+++ b/utils/tracers/l2-rate-tracer.cc
@@ -47,6 +47,12 @@
 }
 
 void
+L2RateTracer::Destroy ()
+{
+  g_tracers.clear ();
+}
+
+void
 L2RateTracer::InstallAll (const std::string &file, Time averagingPeriod/* = Seconds (0.5)*/)
 {
   std::list<Ptr<L2RateTracer> > tracers;