From 75e7e189274cde98c2efdf4d83ffa11f8bb97b8a Mon Sep 17 00:00:00 2001
From: Muxi Yan <muxi@users.noreply.github.com>
Date: Mon, 15 Apr 2019 14:36:41 -0700
Subject: [PATCH] Fix concurrent writer dispatch queue

---
 src/objective-c/GRPCClient/GRPCCall.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index cd3db898985..245a5e9ba02 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -191,6 +191,7 @@ const char *kCFStreamVarName = "grpc_cfstream";
                                 callSafety:_requestOptions.safety
                             requestsWriter:_pipe
                                callOptions:_callOptions];
+    [_call setResponseDispatchQueue:_dispatchQueue];
     if (_callOptions.initialMetadata) {
       [_call.requestHeaders addEntriesFromDictionary:_callOptions.initialMetadata];
     }