diff --git a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
index ac93f7b..5650dff 100644
--- a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
+++ b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
@@ -431,19 +431,19 @@
         switch (l4m.subtype()) {
             case TCP_SRC:
                 tp = (ModTransportPortInstruction) l4m;
-                oxm = factory().oxms().tcpSrc(TransportPort.of(tp.port()));
+                oxm = factory().oxms().tcpSrc(TransportPort.of(tp.port().toInt()));
                 break;
             case TCP_DST:
                 tp = (ModTransportPortInstruction) l4m;
-                oxm = factory().oxms().tcpDst(TransportPort.of(tp.port()));
+                oxm = factory().oxms().tcpDst(TransportPort.of(tp.port().toInt()));
                 break;
             case UDP_SRC:
                 tp = (ModTransportPortInstruction) l4m;
-                oxm = factory().oxms().udpSrc(TransportPort.of(tp.port()));
+                oxm = factory().oxms().udpSrc(TransportPort.of(tp.port().toInt()));
                 break;
             case UDP_DST:
                 tp = (ModTransportPortInstruction) l4m;
-                oxm = factory().oxms().udpDst(TransportPort.of(tp.port()));
+                oxm = factory().oxms().udpDst(TransportPort.of(tp.port().toInt()));
                 break;
             default:
                 log.warn("Unimplemented action type {}.", l4m.subtype());