diff --git a/rpc/types.go b/rpc/types.go
index 78efcc0b9..c890ce43e 100644
--- a/rpc/types.go
+++ b/rpc/types.go
@@ -109,6 +109,7 @@ func (bn *BlockNumber) UnmarshalJSON(data []byte) error {
 		return nil
 	case "latestExecuted":
 		*bn = LatestExecutedBlockNumber
+		return nil
 	case "null":
 		*bn = LatestBlockNumber
 		return nil