diff --git a/cmd/geth/chaincmd.go b/cmd/geth/chaincmd.go
index 98ed348d8c..0b397e6327 100644
--- a/cmd/geth/chaincmd.go
+++ b/cmd/geth/chaincmd.go
@@ -794,8 +794,8 @@ func downloadEra(ctx *cli.Context) error {
 	var network = "mainnet"
 	if utils.IsNetworkPreset(ctx) {
 		switch {
-		case ctx.IsSet(utils.MainnetFlag.Name):
-		case ctx.IsSet(utils.SepoliaFlag.Name):
+		case ctx.Bool(utils.MainnetFlag.Name):
+		case ctx.Bool(utils.SepoliaFlag.Name):
 			network = "sepolia"
 		default:
 			return errors.New("unsupported network, no known era1 checksums")