diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 7a99978b6..073e5a829 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -53,6 +53,7 @@ Bugs fixed
 - Bug 2563 - Modify pybindgen version check to >= minimum version required
 - Bug 2564 - Simulation crashes when CtsTimeout is triggered for A-MPDU transmissions
 - Bug 2566 - BlockAckManager::GetNRetryNeededPackets missing some packets in the queue
+- Bug 2594 - vht-wifi-network provides very low throughtput at MCS 6, 160 MHz, SGI
 
 Known issues
 ------------
diff --git a/examples/wireless/vht-wifi-network.cc b/examples/wireless/vht-wifi-network.cc
index fcae415aa..5c9c8afb6 100644
--- a/examples/wireless/vht-wifi-network.cc
+++ b/examples/wireless/vht-wifi-network.cc
@@ -195,19 +195,16 @@ int main (int argc, char *argv[])
               Simulator::Run ();
               Simulator::Destroy ();
 
-              double throughput = 0;
+              uint64_t rxBytes = 0;
               if (udp)
                 {
-                  //UDP
-                  uint32_t totalPacketsThrough = DynamicCast<UdpServer> (serverApp.Get (0))->GetReceived ();
-                  throughput = totalPacketsThrough * payloadSize * 8 / (simulationTime * 1000000.0); //Mbit/s
+                  rxBytes = payloadSize * DynamicCast<UdpServer> (serverApp.Get (0))->GetReceived ();
                 }
               else
                 {
-                  //TCP
-                  uint32_t totalPacketsThrough = DynamicCast<PacketSink> (sinkApp.Get (0))->GetTotalRx ();
-                  throughput = totalPacketsThrough * 8 / (simulationTime * 1000000.0); //Mbit/s
+                  rxBytes = payloadSize * DynamicCast<PacketSink> (sinkApp.Get (0))->GetTotalRx ();
                 }
+              double throughput = (rxBytes * 8) / (simulationTime * 1000000.0); //Mbit/s
               std::cout << i << "\t\t\t" << j << " MHz\t\t\t" << k << "\t\t\t" << throughput << " Mbit/s" << std::endl;
             }
           j *= 2;