diff --git a/traceroute.cc b/traceroute.cc
index 273bbd814..1c6b4d6fd 100644
--- a/traceroute.cc
+++ b/traceroute.cc
@@ -280,6 +280,7 @@ public:
   struct timeval sent_time;
 
   Probe(HostState *host, struct probespec pspec, u8 ttl);
+  virtual ~Probe();
   void send(int rawsd, eth_t *ethsd, struct timeval *now = NULL);
   void resend(int rawsd, eth_t *ethsd, struct timeval *now = NULL);
   bool is_timedout(struct timeval *now = NULL) const;
@@ -577,6 +578,9 @@ Probe::Probe(HostState *host, struct probespec pspec, u8 ttl) {
   num_resends = 0;
 }
 
+Probe::~Probe() {
+}
+
 void Probe::send(int rawsd, eth_t *ethsd, struct timeval *now) {
   struct eth_nfo eth;
   struct eth_nfo *ethp;