diff --git a/x/auction/codec.go b/x/auction/codec.go
index 26d8535d7f..82c8d4ad47 100644
--- a/x/auction/codec.go
+++ b/x/auction/codec.go
@@ -5,7 +5,7 @@ import (
 	cdctypes "github.com/cosmos/cosmos-sdk/codec/types"
 	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	// "github.com/cosmos/cosmos-sdk/types/msgservice"
+	"github.com/cosmos/cosmos-sdk/types/msgservice"
 )
 
 // Amino codecs
@@ -33,10 +33,9 @@ func RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
 func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
 	registry.RegisterImplementations(
 		(*sdk.Msg)(nil),
-		// &MsgGovSetRewardsParams{},
-		// &MsgRewardsBid{},
+		&MsgGovSetRewardsParams{},
+		&MsgRewardsBid{},
 	)
 
-	// TODO
-	// msgservice.RegisterMsgServiceDesc(registry, &_Msg_serviceDesc)
+	msgservice.RegisterMsgServiceDesc(registry, &_Msg_serviceDesc)
 }