diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 71912d5822..b222470228 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -213,8 +213,8 @@ func (api *ConsensusAPI) ForkchoiceUpdatedV3(update engine.ForkchoiceStateV1, pa
 			return engine.STATUS_INVALID, attributesErr("missing withdrawals")
 		case params.BeaconRoot == nil:
 			return engine.STATUS_INVALID, attributesErr("missing beacon root")
-		case !api.checkFork(params.Timestamp, forks.Cancun, forks.Prague, forks.Osaka):
-			return engine.STATUS_INVALID, unsupportedForkErr("fcuV3 must only be called for cancun or prague payloads")
+		case !api.checkFork(params.Timestamp, forks.Cancun, forks.Prague, forks.Osaka, forks.BPO1, forks.BPO2, forks.BPO3, forks.BPO4, forks.BPO5):
+			return engine.STATUS_INVALID, unsupportedForkErr("fcuV3 must only be called for cancun/prague/osaka payloads")
 		}
 	}
 	// TODO(matt): the spec requires that fcu is applied when called on a valid