diff --git a/server/grpc/server.go b/server/grpc/server.go
index 0bdea8bca2e..78a8e1955af 100644
--- a/server/grpc/server.go
+++ b/server/grpc/server.go
@@ -8,6 +8,7 @@ import (
 	"google.golang.org/grpc"
 
 	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/server/config"
 	"github.com/cosmos/cosmos-sdk/server/grpc/gogoreflection"
 	reflection "github.com/cosmos/cosmos-sdk/server/grpc/reflection/v2alpha1"
@@ -28,6 +29,7 @@ func StartGRPCServer(clientCtx client.Context, app types.Application, cfg config
 	}
 
 	grpcSrv := grpc.NewServer(
+		grpc.ForceServerCodec(codec.NewProtoCodec(clientCtx.InterfaceRegistry).GRPCCodec()),
 		grpc.MaxSendMsgSize(maxSendMsgSize),
 		grpc.MaxRecvMsgSize(maxRecvMsgSize),
 	)