diff --git a/java_gen/templates/custom/OFMatchV3Ver13.java b/java_gen/templates/custom/OFMatchV3Ver13.java
index a4cc51c..8955e1e 100644
--- a/java_gen/templates/custom/OFMatchV3Ver13.java
+++ b/java_gen/templates/custom/OFMatchV3Ver13.java
@@ -62,6 +62,7 @@
             case IPV6_SRC:
             case IPV6_DST:
             case IPV6_FLABEL:
+            case BSN_IN_PORTS_128:
                 return true;
             default:
                 return false;
@@ -106,4 +107,4 @@
         OFOxm<?> oxm = this.oxmList.get(field);
 
         return oxm != null && oxm.isMasked();
-    }
\ No newline at end of file
+    }