diff --git a/test_data/of10/packet_in.data b/test_data/of10/packet_in.data
index 2cd98b0..bd89cf8 100644
--- a/test_data/of10/packet_in.data
+++ b/test_data/of10/packet_in.data
@@ -30,7 +30,7 @@
 -- java
 builder
    .setXid(0x12345678)
-   .setBufferId(0xabcdef01)
+   .setBufferId(0xabcdef01L)
    .setTotalLen(9)
    .setInPort(OFPort.LOCAL)
    .setReason(OFPacketInReason.ACTION)