diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 0c9ef8f58..2fb1fd396 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -223,7 +223,9 @@ func (api *ConsensusAPI) ForkchoiceUpdatedV3(update engine.ForkchoiceStateV1, pa
 		if params.BeaconRoot == nil {
 			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("missing beacon root"))
 		}
-		log.Debug("forkchoiceupdatedv3 args", "update", update, "params", params)
+		log.Debug("forkchoiceupdatedv3 args", "update", update, "params", params,
+			"config", api.eth.BlockChain().Config(),
+			"latest_fork", api.eth.BlockChain().Config().LatestFork(params.Timestamp))
 		if api.eth.BlockChain().Config().LatestFork(params.Timestamp) != forks.Cancun {
 			return engine.STATUS_INVALID, engine.UnsupportedFork.With(errors.New("forkchoiceUpdatedV3 must only be called for cancun payloads"))
 		}