diff --git a/src/async_wrap.h b/src/async_wrap.h
index 10d02c15da8f27..f7ed25f9eea318 100644
--- a/src/async_wrap.h
+++ b/src/async_wrap.h
@@ -236,7 +236,7 @@ class AsyncWrap : public BaseObject {
   bool init_hook_ran_ = false;
   // Because the values may be Reset(), cannot be made const.
   double async_id_ = kInvalidAsyncId;
-  double trigger_async_id_;
+  double trigger_async_id_ = kInvalidAsyncId;
 };
 
 }  // namespace node