diff --git a/core/lib.rs b/core/lib.rs
index 064c15fc13..ab22392c49 100644
--- a/core/lib.rs
+++ b/core/lib.rs
@@ -27,6 +27,7 @@ pub use serde;
 pub use serde_json;
 pub use serde_v8;
 pub use serde_v8::ByteString;
+pub use serde_v8::DetachedBuffer;
 pub use serde_v8::StringOrBuffer;
 pub use serde_v8::U16String;
 pub use serde_v8::ZeroCopyBuf;
diff --git a/ext/web/message_port.rs b/ext/web/message_port.rs
index 06f7e3c522..48c899216a 100644
--- a/ext/web/message_port.rs
+++ b/ext/web/message_port.rs
@@ -6,7 +6,7 @@ use deno_core::error::type_error;
 use deno_core::error::AnyError;
 use deno_core::op;
 
-use deno_core::ZeroCopyBuf;
+use deno_core::DetachedBuffer;
 use deno_core::{CancelFuture, Resource};
 use deno_core::{CancelHandle, OpState};
 use deno_core::{RcRef, ResourceId};
@@ -21,7 +21,7 @@ enum Transferable {
   ArrayBuffer(u32),
 }
 
-type MessagePortMessage = (Vec<u8>, Vec<Transferable>);
+type MessagePortMessage = (DetachedBuffer, Vec<Transferable>);
 
 pub struct MessagePort {
   rx: RefCell<UnboundedReceiver<MessagePortMessage>>,
@@ -40,7 +40,7 @@ impl MessagePort {
     // Swallow the failed to send error. It means the channel was disentangled,
     // but not cleaned up.
     if let Some(tx) = &*self.tx.borrow() {
-      tx.send((data.data.to_vec(), transferables)).ok();
+      tx.send((data.data, transferables)).ok();
     }
 
     Ok(())
@@ -59,7 +59,7 @@ impl MessagePort {
       let js_transferables =
         serialize_transferables(&mut state.borrow_mut(), transferables);
       return Ok(Some(JsMessageData {
-        data: ZeroCopyBuf::from(data),
+        data,
         transferables: js_transferables,
       }));
     }
@@ -182,7 +182,7 @@ fn serialize_transferables(
 
 #[derive(Deserialize, Serialize)]
 pub struct JsMessageData {
-  data: ZeroCopyBuf,
+  data: DetachedBuffer,
   transferables: Vec<JsTransferable>,
 }