diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IpDscp.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IpDscp.java
index ec78315..27596b7 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IpDscp.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IpDscp.java
@@ -3,6 +3,8 @@
 import org.jboss.netty.buffer.ChannelBuffer;
 import org.projectfloodlight.openflow.exceptions.OFParseError;
 
+import com.google.common.hash.PrimitiveSink;
+
 public enum IpDscp implements OFValueType<IpDscp> {
     DSCP_0((byte)0),
     DSCP_1((byte)1),
@@ -244,4 +246,9 @@
     public byte getDscpValue() {
         return dscp;
     }
+
+    @Override
+    public void putTo(PrimitiveSink sink) {
+        sink.putByte(dscp);
+    }
 }