diff --git a/proposals/webidl-bindings/Explainer.md b/proposals/webidl-bindings/Explainer.md
index 23c40355b9..fde3778c26 100644
--- a/proposals/webidl-bindings/Explainer.md
+++ b/proposals/webidl-bindings/Explainer.md
@@ -176,7 +176,6 @@ produced). A sample list of outgoing binding operators:
 | :---     | :---       | :---     | :---        |
 | **as** | webidl‑type<br>idx | | Takes the `idx`'th wasm value of the source tuple and produces a Web IDL value of `webidl-type`, allowing only trivial conversions (like `i32` to [`long`] or `anyref` to [`any`]). |
 | **utf8‑str** | webidl‑type<br>off‑idx<br>len‑idx | | Takes the `off-idx`'th and `len-idx`'th wasm values of the source tuple, which must both be `i32`s, as the offset and length, resp., of a UTF-8 string in linear memory and decodes a `webidl-type`, which must be one of [`DOMString`] or [`USVString`], as specified by [`TextDecoder`]. |
-| **utf8‑cstr** | webidl‑type<br>off‑idx	| | Like `utf8-str`, but instead of length being explicitly supplied as a wasm value in the source tuple, the length is found by decoding up to the first null code point. |
 | **i32‑to‑enum** | webidl‑type<br>val‑idx	| | Takes the `val-idx`'th wasm value of the source tuple, which must be an `i32`, as an index into the list of strings specified by `webidl-type`, which must be an [Enumeration]. |
 | **view** | webidl‑type<br>off‑idx<br>len‑idx | | Takes the `off-idx`'th and `len-idx`'th wasm values of the source tuple, which must both be `i32`s, as the offset and length, resp., of a new `webidl-type`, which must be a [Typed Array View], making a *view* of the bytes. |
 | **copy** | webidl‑type<br>off‑idx<br>len‑idx | | Takes the `off-idx`'th and `len-idx`'th wasm values of the source tuple, which must both be `i32`s, as the offset and length, resp., of a new `webidl-type`, which must be a [`BufferSource`] or [`ByteString`], making a *copy* of the bytes. |