diff --git a/test/cpp/qps/client_callback.cc b/test/cpp/qps/client_callback.cc
index ade23e13a72..d22264d21e3 100644
--- a/test/cpp/qps/client_callback.cc
+++ b/test/cpp/qps/client_callback.cc
@@ -293,9 +293,6 @@ class CallbackStreamingPingPongReactor final
       gpr_timespec next_issue_time = client_->NextRPCIssueTime();
       // Start an alarm callback to run the internal callback after
       // next_issue_time
-      if (ctx_->alarm_ == nullptr) {
-        ctx_->alarm_.reset(new Alarm);
-      }
       ctx_->alarm_->experimental().Set(next_issue_time, [this](bool ok) {
         write_time_ = UsageTimer::Now();
         StartWrite(client_->request());