diff --git a/clients/besu/mapper.jq b/clients/besu/mapper.jq
index b356ee63e7..a1d7de11cb 100644
--- a/clients/besu/mapper.jq
+++ b/clients/besu/mapper.jq
@@ -44,7 +44,8 @@ def to_int:
     "berlinBlock": env.HIVE_FORK_BERLIN|to_int,
     "londonBlock": env.HIVE_FORK_LONDON|to_int,
     "parisBlock": env.HIVE_MERGE_BLOCK_ID|to_int,
-    "shanghaiTime": env.HIVE_SHANGHAI_TIMESTAMP|to_int,
     "terminalTotalDifficulty": env.HIVE_TERMINAL_TOTAL_DIFFICULTY|to_int,
+    "shanghaiTime": env.HIVE_SHANGHAI_TIMESTAMP|to_int,
+    "cancunTime": env.HIVE_CANCUN_TIMESTAMP|to_int,
   }|remove_empty
 }