diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanPcp.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanPcp.java
index 7d15fb7..dcc7d60 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanPcp.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanPcp.java
@@ -3,6 +3,8 @@
 import org.jboss.netty.buffer.ChannelBuffer;
 import org.projectfloodlight.openflow.exceptions.OFParseError;
 
+import com.google.common.primitives.UnsignedBytes;
+
 public class VlanPcp implements OFValueType<VlanPcp> {
 
     private static final byte VALIDATION_MASK = 0x07;
@@ -68,4 +70,9 @@
         return VlanPcp.of((byte)(this.pcp & mask.pcp));
     }
 
+    @Override
+    public int compareTo(VlanPcp o) {
+        return UnsignedBytes.compare(pcp, o.pcp);
+    }
+
 }