diff --git a/netpfga/minip4/src/minip4_solution-nat64.p4 b/netpfga/minip4/src/minip4_solution-nat64.p4
index 6250d43..55c1526 100644
--- a/netpfga/minip4/src/minip4_solution-nat64.p4
+++ b/netpfga/minip4/src/minip4_solution-nat64.p4
@@ -626,7 +626,7 @@ control TopPipe(inout Parsed_packet p,
 @Xilinx_MaxPacketRegion(1024)
 control TopDeparser(packet_out b,
                     in Parsed_packet p,
-                    in user_metadata_t user_metadata,
+                    in metadata meta,
                     inout digest_data_t digest_data,
                     inout sume_metadata_t sume_metadata) {
     apply {