diff --git a/core/types/transaction_marshalling.go b/core/types/transaction_marshalling.go
index cf21e60525f6..d95e37e3378e 100644
--- a/core/types/transaction_marshalling.go
+++ b/core/types/transaction_marshalling.go
@@ -264,7 +264,7 @@ func (t *Transaction) UnmarshalJSON(input []byte) error {
 		}
 
 	default:
-		if dec.ChainID.ToInt().Uint64() == 324 || dec.ChainID.ToInt().Uint64() == 42161 {
+		if dec.ChainID != nil && dec.ChainID.ToInt() != nil && (dec.ChainID.ToInt().Uint64() == 324 || dec.ChainID.ToInt().Uint64() == 42161) {
 			return nil
 		}
 		return ErrTxTypeNotSupported