diff --git a/cmRtNet.c b/cmRtNet.c
index 5457c6e..2fd1321 100644
--- a/cmRtNet.c
+++ b/cmRtNet.c
@@ -795,7 +795,7 @@ void   cmRtNetReport( cmRtNetH_t h )
 
     cmRptPrintf(rpt,"%s ",cmStringNullGuard(cmUdpAddrToString(p->udpH,&np->sockaddr)));
 
-    if( np->port != cmInvalidId )
+    if( np->port != kInvalidUdpPortNumber )
       cmRptPrintf(rpt,"%i ",np->port );
 
     cmRptPrintf(rpt,"\n");