diff --git a/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java b/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
index 5e147c0b430b46ef3377a7cb5278dafb8d514c64..3430853c85ddf972b937ef4ebfba5e9afa5ed0d8 100644
--- a/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
+++ b/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
@@ -81,7 +81,7 @@ public class DisThreadedNetworkInterface
     DatagramPacket        packet;
 
     /**
-     * Pdu listener class and interface
+     * Pdu listener interface is an internal class.
      */
     public interface PduListener
     {
@@ -93,7 +93,7 @@ public class DisThreadedNetworkInterface
     }
 
     /**
-     * Raw pdu listener class and interface
+     * Raw pdu listener interface is an internal class.
      */
     public interface RawPduListener
     {