diff --git a/modules/grpc-engine/interface.proto b/modules/grpc-engine/interface.proto
index 76ec26b91..a1869925b 100644
--- a/modules/grpc-engine/interface.proto
+++ b/modules/grpc-engine/interface.proto
@@ -9,8 +9,3 @@ message RenderOptions {
   string document
   string documentFilename
 }
-
-message RenderOptions {
-  string document
-  string documentFilename
-}
diff --git a/modules/grpc-engine/src/main.ts b/modules/grpc-engine/src/main.ts
index 16bc20a80..4c2ee120c 100644
--- a/modules/grpc-engine/src/main.ts
+++ b/modules/grpc-engine/src/main.ts
@@ -35,7 +35,7 @@ export function startGRPCEngine(
     const server = new grpc.Server();
     server.addProtoService(protoDescriptor.GRPCEngine.service, {
       render: async (call: any, callback: any) => {
-        const options = call.request as GRPCEngineRenderOptions;
+        const renderOptions = call.request as GRPCEngineRenderOptions;
         const html = await engine.render(renderOptions);
         // TODO: how to send errors?
         callback(null, html);