diff --git a/src/bun.js/bindings/webcore/MessagePort.h b/src/bun.js/bindings/webcore/MessagePort.h
index c96e6a1bfb..8d73450c76 100644
--- a/src/bun.js/bindings/webcore/MessagePort.h
+++ b/src/bun.js/bindings/webcore/MessagePort.h
@@ -27,6 +27,7 @@
 #pragma once
 
 #include "ActiveDOMObject.h"
+#include "ContextDestructionObserver.h"
 #include "EventTarget.h"
 #include "ExceptionOr.h"
 #include "MessagePortChannel.h"