diff --git a/TtxFromTS/DVB/PESFactory.cs b/TtxFromTS/DVB/PESFactory.cs
index b538b4f..ed5f47e 100644
--- a/TtxFromTS/DVB/PESFactory.cs
+++ b/TtxFromTS/DVB/PESFactory.cs
@@ -38,7 +38,10 @@ public class PESFactory
             // If we have an elementary stream packet, add the packet and decode the PES if it is complete
             if (_elementaryStreamPacket != null)
             {
-                _elementaryStreamPacket.Add(packet);
+                if (packet.Payload != null)
+                {
+                    _elementaryStreamPacket.Add(packet);    
+                }
                 if (_elementaryStreamPacket.HasAllBytes())
                 {
                     _elementaryStreamPacket.Decode();