diff --git a/include/GenericTrafficElement.h b/include/GenericTrafficElement.h
index afd725b846..11cbb79b5a 100644
--- a/include/GenericTrafficElement.h
+++ b/include/GenericTrafficElement.h
@@ -42,10 +42,7 @@ class GenericTrafficElement {
 
  public:
   GenericTrafficElement();
-  
-  GenericTrafficElement(const GenericTrafficElement &gte) {
-    ndpiStats = (gte.ndpiStats) ? new nDPIStats(*gte.ndpiStats) : NULL;
-  };
+  GenericTrafficElement(const GenericTrafficElement &gte);
 
   virtual ~GenericTrafficElement() {
     if(ndpiStats) delete ndpiStats;
diff --git a/src/GenericTrafficElement.cpp b/src/GenericTrafficElement.cpp
index 8ac5bbc750..5f59f1b9b8 100644
--- a/src/GenericTrafficElement.cpp
+++ b/src/GenericTrafficElement.cpp
@@ -23,6 +23,7 @@
 
 /* *************************************** */
 
+/* NOTE: keep in sync with copy constructor below */
 GenericTrafficElement::GenericTrafficElement() {
   ndpiStats = NULL;
   last_bytes = 0, last_bytes_thpt = bytes_thpt = 0, bytes_thpt_trend = trend_unknown;
@@ -36,6 +37,20 @@ GenericTrafficElement::GenericTrafficElement() {
 
 /* *************************************** */
 
+GenericTrafficElement::GenericTrafficElement(const GenericTrafficElement &gte) {
+    ndpiStats = (gte.ndpiStats) ? new nDPIStats(*gte.ndpiStats) : NULL;
+    sent = gte.sent, rcvd = gte.rcvd;
+
+    last_bytes = gte.last_bytes, bytes_thpt = gte.bytes_thpt, last_bytes_thpt = gte.last_bytes_thpt, bytes_thpt_trend = gte.bytes_thpt_trend;
+    bytes_thpt_diff = gte.bytes_thpt_diff;
+    last_packets = gte.last_packets, pkts_thpt = gte.pkts_thpt, last_pkts_thpt = gte.last_pkts_thpt, pkts_thpt_trend = gte.pkts_thpt_trend;
+    last_update_time = gte.last_update_time;
+    vlan_id = gte.vlan_id;
+    total_num_dropped_flows = gte.total_num_dropped_flows;
+}
+
+/* *************************************** */
+
 void GenericTrafficElement::updateStats(struct timeval *tv) {
   if(last_update_time.tv_sec > 0) {
     float tdiff = Utils::msTimevalDiff(tv, &last_update_time);