diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFMatchBmap.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFMatchBmap.java
index e17796a..68ca86d 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFMatchBmap.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFMatchBmap.java
@@ -1,5 +1,13 @@
 package org.projectfloodlight.openflow.protocol;
 
-public class OFMatchBmap {
+import org.projectfloodlight.openflow.types.PrimitiveSinkable;
+
+import com.google.common.hash.PrimitiveSink;
+
+public class OFMatchBmap implements PrimitiveSinkable{
+
+    @Override
+    public void putTo(PrimitiveSink sink) {
+    }
 
 }