diff --git a/internal/configs/node/config.go b/internal/configs/node/config.go
index cf487cec4..db38b505d 100644
--- a/internal/configs/node/config.go
+++ b/internal/configs/node/config.go
@@ -244,6 +244,7 @@ func GetPublicRPC() bool {
 	return publicRPC
 }
 
+// ChainConfig returns the chain configuration for the network type.
 func (t NetworkType) ChainConfig() params.ChainConfig {
 	switch t {
 	case Mainnet: