diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 57600e677..19eee21ae 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -1531,6 +1531,8 @@ func MakeGenesis() *core.Genesis {
 		genesis = core.DefaultLocalGenesisBlock(consensusEngine, genesisNonce)
 	case params.DevName:
 		Fatalf("Developer chains are ephemeral")
+	default:
+		genesis = core.DefaultGenesisBlock(genesisNonce)
 	}
 	return genesis
 }