diff --git a/eth/ethconfig/gen_config.go b/eth/ethconfig/gen_config.go
index 0070ba4c0..7d7fd3266 100644
--- a/eth/ethconfig/gen_config.go
+++ b/eth/ethconfig/gen_config.go
@@ -144,7 +144,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 		RPCGasCap               *uint64
 		RPCEVMTimeout           *time.Duration
 		RPCTxFeeCap             *float64
-		OverrideCancun        *uint64 `toml:",omitempty"`
+		OverrideCancun          *uint64 `toml:",omitempty"`
 	}
 	var dec Config
 	if err := unmarshal(&dec); err != nil {