diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index 6bb6918bfe10..1cca808ed799 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -1075,6 +1075,7 @@ func (app *BaseApp) Close() error {
 	return nil
 }
 
+// ChainID returns the chainID of the BaseApp.
 func (app *BaseApp) ChainID() string {
 	return app.chainID
 }