diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/OFBufferId.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/OFBufferId.java
index 2689f93..99f3e7f 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/OFBufferId.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/OFBufferId.java
@@ -40,7 +40,7 @@
     }
 
     public static OFBufferId read4Bytes(ChannelBuffer c) throws OFParseError {
-        return OFBufferId.of((int)(c.readUnsignedInt() & 0xFFFFFFFF));
+        return OFBufferId.of(c.readInt());
     }
 
     @Override