diff --git a/api/proxy.cc b/api/proxy.cc
index 01e6be577b..e668285ba2 100644
--- a/api/proxy.cc
+++ b/api/proxy.cc
@@ -14,7 +14,7 @@ namespace webrtc {
 namespace internal {
 
 SynchronousMethodCall::SynchronousMethodCall(rtc::MessageHandler* proxy)
-    : e_(), proxy_(proxy) {}
+    : proxy_(proxy) {}
 
 SynchronousMethodCall::~SynchronousMethodCall() = default;
 
@@ -23,15 +23,14 @@ void SynchronousMethodCall::Invoke(const rtc::Location& posted_from,
   if (t->IsCurrent()) {
     proxy_->OnMessage(nullptr);
   } else {
-    e_ = absl::make_unique<rtc::Event>();
     t->Post(posted_from, this, 0);
-    e_->Wait(rtc::Event::kForever);
+    e_.Wait(rtc::Event::kForever);
   }
 }
 
 void SynchronousMethodCall::OnMessage(rtc::Message*) {
   proxy_->OnMessage(nullptr);
-  e_->Set();
+  e_.Set();
 }
 
 }  // namespace internal
diff --git a/api/proxy.h b/api/proxy.h
index c8962efed7..99160517de 100644
--- a/api/proxy.h
+++ b/api/proxy.h
@@ -143,7 +143,7 @@ class SynchronousMethodCall : public rtc::MessageData,
  private:
   void OnMessage(rtc::Message*) override;
 
-  std::unique_ptr<rtc::Event> e_;
+  rtc::Event e_;
   rtc::MessageHandler* proxy_;
 };