From ad3ce5b524e2e6eb286363e0cb103f03c02e4de1 Mon Sep 17 00:00:00 2001
From: Leonard Shi <leonard.shi.cs@gmail.com>
Date: Wed, 23 Aug 2017 19:04:03 +0800
Subject: [PATCH] What value should be exactly used here?

---
 packages/zipkin-instrumentation-grpc/package.json               | 2 +-
 .../zipkin-instrumentation-grpc/src/ZipkinGrpcInterceptor.js    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/zipkin-instrumentation-grpc/package.json b/packages/zipkin-instrumentation-grpc/package.json
index ab4f7586..f436db13 100644
--- a/packages/zipkin-instrumentation-grpc/package.json
+++ b/packages/zipkin-instrumentation-grpc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zipkin-instrumentation-grpc",
-  "version": "0.0.1",
+  "version": "0.0.6",
   "description": "Interceptor for instrumenting GRPC calls.",
   "main": "lib/index.js",
   "scripts": {
diff --git a/packages/zipkin-instrumentation-grpc/src/ZipkinGrpcInterceptor.js b/packages/zipkin-instrumentation-grpc/src/ZipkinGrpcInterceptor.js
index ad39ef78..eaff7939 100644
--- a/packages/zipkin-instrumentation-grpc/src/ZipkinGrpcInterceptor.js
+++ b/packages/zipkin-instrumentation-grpc/src/ZipkinGrpcInterceptor.js
@@ -29,7 +29,7 @@ class ZipkinGrpcInterceptor {
       this.traceId = this.tracer.id;
 
       metadata.add('X-B3-TraceId', this.tracer.id.traceId);
-      metadata.add('X-B3-ParentSpanId', this.tracer.id.spanId);
+      metadata.add('X-B3-ParentSpanId', this.tracer.id.parentId);
       metadata.add('X-B3-SpanId', this.tracer.id.spanId);
       metadata.add('X-B3-Sampled', this.tracer.id.sampled.getOrElse() ? '1' : '0');