diff --git a/ledger/conway/rules.go b/ledger/conway/rules.go
index 3f446498..6909aa5f 100644
--- a/ledger/conway/rules.go
+++ b/ledger/conway/rules.go
@@ -256,6 +256,8 @@ func UtxoValidateValueNotConservedUtxo(
 		switch cert.(type) {
 		case *common.DeregistrationCertificate:
 			consumedValue += uint64(tmpPparams.KeyDeposit)
+		case *common.DeregistrationDrepCertificate:
+			consumedValue += uint64(tmpPparams.DRepDeposit)
 		case *common.StakeDeregistrationCertificate:
 			consumedValue += uint64(tmpPparams.KeyDeposit)
 		}