Increase test timeout
diff --git a/test/cpp/end2end/async_end2end_test.cc b/test/cpp/end2end/async_end2end_test.cc
index 6c0dfad..0e5a3b0 100644
--- a/test/cpp/end2end/async_end2end_test.cc
+++ b/test/cpp/end2end/async_end2end_test.cc
@@ -198,8 +198,9 @@
       stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
 
   std::chrono::system_clock::time_point time_now(
-      std::chrono::system_clock::now()),
-      time_limit(std::chrono::system_clock::now() + std::chrono::seconds(5));
+      std::chrono::system_clock::now());
+  std::chrono::system_clock::time_point time_limit(
+      std::chrono::system_clock::now() + std::chrono::seconds(10));
   verify_timed_ok(&srv_cq_, -1, true, time_now, CompletionQueue::TIMEOUT);
   verify_timed_ok(&cli_cq_, -1, true, time_now, CompletionQueue::TIMEOUT);