diff --git a/itests/eth_conformance_test.go b/itests/eth_conformance_test.go
index f37d03942..700427ce4 100644
--- a/itests/eth_conformance_test.go
+++ b/itests/eth_conformance_test.go
@@ -28,7 +28,7 @@ import (
 	"github.com/filecoin-project/lotus/itests/kit"
 )
 
-// TODO generate this using reflection
+// TODO generate this using reflection. It's the same as the EthAPI except every return value is a json.RawMessage
 type ethAPIRaw struct {
 	EthAccounts                            func(context.Context) (json.RawMessage, error)
 	EthBlockNumber                         func(context.Context) (json.RawMessage, error)