diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6FlowLabel.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6FlowLabel.java
index 7dbf9bb..45bbf4b 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6FlowLabel.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6FlowLabel.java
@@ -3,6 +3,8 @@
 import org.jboss.netty.buffer.ChannelBuffer;
 import org.projectfloodlight.openflow.exceptions.OFParseError;
 
+import com.google.common.primitives.UnsignedInts;
+
 public class IPv6FlowLabel implements OFValueType<IPv6FlowLabel> {
 
     static final int LENGTH = 4;
@@ -69,4 +71,9 @@
     public int getIPv6FlowLabelValue() {
         return label;
     }
+
+    @Override
+    public int compareTo(IPv6FlowLabel o) {
+        return UnsignedInts.compare(label, o.label);
+    }
 }