diff --git a/examples/wireless/wifi-backward-compatibility.cc b/examples/wireless/wifi-backward-compatibility.cc
index ec1a28716..d14ef3ec0 100644
--- a/examples/wireless/wifi-backward-compatibility.cc
+++ b/examples/wireless/wifi-backward-compatibility.cc
@@ -217,22 +217,31 @@ int main (int argc, char *argv[])
 
   uint64_t rxBytes;
   double throughput;
+  bool error = false;
   if (apHasTraffic)
     {
       rxBytes = payloadSize * DynamicCast<UdpServer> (staServerApp.Get (0))->GetReceived ();
       throughput = (rxBytes * 8) / (simulationTime * 1000000.0); //Mbit/s
       std::cout << "AP Throughput: " << throughput << " Mbit/s" << std::endl;
+      if (throughput == 0)
+      {
+        error = true;
+      }
     }
   if (staHasTraffic)
     {
       rxBytes = payloadSize * DynamicCast<UdpServer> (apServerApp.Get (0))->GetReceived ();
       throughput = (rxBytes * 8) / (simulationTime * 1000000.0); //Mbit/s
       std::cout << "STA Throughput: " << throughput << " Mbit/s" << std::endl;
+      if (throughput == 0)
+      {
+        error = true;
+      }
     }
 
   Simulator::Destroy ();
 
-  if (throughput == 0)
+  if (error)
     {
       NS_LOG_ERROR ("No traffic received!");
       exit (1);