diff --git a/utils/tracers/ndn-cs-tracer.cc b/utils/tracers/ndn-cs-tracer.cc
index 0c1becb..7f2553d 100644
--- a/utils/tracers/ndn-cs-tracer.cc
+++ b/utils/tracers/ndn-cs-tracer.cc
@@ -53,6 +53,12 @@
 }
 
 void
+CsTracer::Destroy ()
+{
+  g_tracers.clear ();
+}
+
+void
 CsTracer::InstallAll (const std::string &file, Time averagingPeriod/* = Seconds (0.5)*/)
 {
   using namespace boost;