diff --git a/src/async_wrap.cc b/src/async_wrap.cc
index 596fcc8356d500..29bd64f2c5e3fe 100644
--- a/src/async_wrap.cc
+++ b/src/async_wrap.cc
@@ -563,7 +563,6 @@ AsyncWrap::AsyncWrap(Environment* env,
   CHECK_NE(provider, PROVIDER_NONE);
   CHECK_GE(object->InternalFieldCount(), 1);
 
-  async_id_ = -1;
   // Use AsyncReset() call to execute the init() callbacks.
   AsyncReset(execution_async_id, silent);
 }
diff --git a/src/async_wrap.h b/src/async_wrap.h
index 360380afc3459b..e3d5748bbc6077 100644
--- a/src/async_wrap.h
+++ b/src/async_wrap.h
@@ -200,7 +200,7 @@ class AsyncWrap : public BaseObject {
   inline AsyncWrap();
   const ProviderType provider_type_;
   // Because the values may be Reset(), cannot be made const.
-  double async_id_;
+  double async_id_ = -1;
   double trigger_async_id_;
 };