diff --git a/test/cpp/end2end/thread_stress_test.cc b/test/cpp/end2end/thread_stress_test.cc
index 8295bf86925..d4fcbfb8cdd 100644
--- a/test/cpp/end2end/thread_stress_test.cc
+++ b/test/cpp/end2end/thread_stress_test.cc
@@ -301,7 +301,7 @@ TEST_F(AsyncClientEnd2endTest, ThreadStress) {
   std::vector<std::thread*> threads;
   for (int i = 0; i < 100; ++i) {
     threads.push_back(new std::thread(
-        &AsyncClientEnd2endTest_ThreadStress_Test::AsyncSendRpc, this, 100));
+        &AsyncClientEnd2endTest_ThreadStress_Test::AsyncSendRpc, this, 1000));
   }
   for (int i = 0; i < 100; ++i) {
     threads[i]->join();