diff --git a/spacy/tokens/span.pyi b/spacy/tokens/span.pyi
index 979e74e7e..549990c5e 100644
--- a/spacy/tokens/span.pyi
+++ b/spacy/tokens/span.pyi
@@ -96,7 +96,6 @@ class Span:
         label: Union[int, str] = ...,
         kb_id: Union[int, str] = ...,
         vector: Optional[Floats1d] = ...,
-        id: Union[int, str] = ...,
         alignment_mode: str = ...,
         span_id: Union[int, str] = ...,
     ) -> Span: ...
diff --git a/spacy/tokens/span.pyx b/spacy/tokens/span.pyx
index aefea4f71..b00815502 100644
--- a/spacy/tokens/span.pyx
+++ b/spacy/tokens/span.pyx
@@ -656,7 +656,7 @@ cdef class Span:
         else:
             return self.doc[root]
 
-    def char_span(self, int start_idx, int end_idx, label=0, kb_id=0, vector=None, id=0, alignment_mode="strict", span_id=0):
+    def char_span(self, int start_idx, int end_idx, label=0, kb_id=0, vector=None, alignment_mode="strict", span_id=0):
         """Create a `Span` object from the slice `span.text[start : end]`.
 
         start (int): The index of the first character of the span.
@@ -666,7 +666,6 @@ cdef class Span:
         kb_id (Union[int, str]):  An ID from a KB to capture the meaning of a named entity.
         vector (ndarray[ndim=1, dtype='float32']): A meaning representation of
             the span.
-        id (Union[int, str]): Unused.
         alignment_mode (str): How character indices are aligned to token
             boundaries. Options: "strict" (character indices must be aligned
             with token boundaries), "contract" (span of all tokens completely
diff --git a/website/docs/api/span.mdx b/website/docs/api/span.mdx
index e62d9c724..7e7042866 100644
--- a/website/docs/api/span.mdx
+++ b/website/docs/api/span.mdx
@@ -193,7 +193,6 @@ the character indices don't map to a valid span.
 | `label`                                         | A label to attach to the span, e.g. for named entities. ~~Union[int, str]~~                                                                                                                                                                                                  |
 | `kb_id`                                         | An ID from a knowledge base to capture the meaning of a named entity. ~~Union[int, str]~~                                                                                                                                                                                    |
 | `vector`                                        | A meaning representation of the span. ~~numpy.ndarray[ndim=1, dtype=float32]~~                                                                                                                                                                                               |
-| `id`                                            | Unused. ~~Union[int, str]~~                                                                                                                                                                                                                                                  |
 | `alignment_mode` <Tag variant="new">3.5.1</Tag> | How character indices snap to token boundaries. Options: `"strict"` (no snapping), `"contract"` (span of all tokens completely within the character span), `"expand"` (span of all tokens at least partially covered by the character span). Defaults to `"strict"`. ~~str~~ |
 | `span_id` <Tag variant="new">3.5.1</Tag>        | An identifier to associate with the span. ~~Union[int, str]~~                                                                                                                                                                                                                |
 | **RETURNS**                                     | The newly constructed object or `None`. ~~Optional[Span]~~                                                                                                                                                                                                                   |