diff --git a/src/libCom/osi/os/WIN32/osdNetIntf.c b/src/libCom/osi/os/WIN32/osdNetIntf.c
index e5a3fdfe3..7163e690f 100644
--- a/src/libCom/osi/os/WIN32/osdNetIntf.c
+++ b/src/libCom/osi/os/WIN32/osdNetIntf.c
@@ -138,7 +138,7 @@ epicsShareFunc void epicsShareAPI osiSockDiscoverBroadcastAddresses
                 return;
             }
             pNewNode->addr.ia.sin_family = AF_INET;
-            pNewNode->addr.ia.sin_port = 0u;
+            pNewNode->addr.ia.sin_port = htons ( 0 );
             pNewNode->addr.ia.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
             ellAdd ( pList, &pNewNode->node );
             return;
@@ -226,7 +226,7 @@ epicsShareFunc void epicsShareAPI osiSockDiscoverBroadcastAddresses
             unsigned result = (addr & mask) | (bcast &~mask);
             pNewNode->addr.ia.sin_family = AF_INET;
             pNewNode->addr.ia.sin_addr.s_addr = result;
-            pNewNode->addr.ia.sin_port = 0u;
+            pNewNode->addr.ia.sin_port = htons ( 0 );
         } 
         else {
             pNewNode->addr.sa = pIfinfo->iiBroadcastAddress.Address;
diff --git a/src/libCom/osi/os/default/osdNetIntf.c b/src/libCom/osi/os/default/osdNetIntf.c
index de683387a..f969f9226 100644
--- a/src/libCom/osi/os/default/osdNetIntf.c
+++ b/src/libCom/osi/os/default/osdNetIntf.c
@@ -82,7 +82,7 @@ epicsShareFunc void epicsShareAPI osiSockDiscoverBroadcastAddresses
                 return;
             }
             pNewNode->addr.ia.sin_family = AF_INET;
-            pNewNode->addr.ia.sin_port = 0u;
+            pNewNode->addr.ia.sin_port = htons ( 0 );
             pNewNode->addr.ia.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
             ellAdd ( pList, &pNewNode->node );
             return;
diff --git a/src/libCom/osi/os/interix/osdNetIntf.c b/src/libCom/osi/os/interix/osdNetIntf.c
index 3ea38322f..3d8d755b7 100644
--- a/src/libCom/osi/os/interix/osdNetIntf.c
+++ b/src/libCom/osi/os/interix/osdNetIntf.c
@@ -78,7 +78,7 @@ epicsShareFunc void epicsShareAPI osiSockDiscoverBroadcastAddresses
                 return;
             }
             pNewNode->addr.ia.sin_family = AF_INET;
-            pNewNode->addr.ia.sin_port = 0u;
+            pNewNode->addr.ia.sin_port = htons ( 0 );
             pNewNode->addr.ia.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
             ellAdd ( pList, &pNewNode->node );
             return;