diff --git a/website/docs/api/span.md b/website/docs/api/span.md
index 524ec412d..0af305b37 100644
--- a/website/docs/api/span.md
+++ b/website/docs/api/span.md
@@ -114,6 +114,7 @@ For details, see the documentation on
 | `method`  | callable | Set a custom method on the object, for example `span._.compare(other_span)`.                                                          |
 | `getter`  | callable | Getter function that takes the object and returns an attribute value. Is called when the user accesses the `._` attribute.            |
 | `setter`  | callable | Setter function that takes the `Span` and a value, and modifies the object. Is called when the user writes to the `Span._` attribute. |
+| `force`   | bool     | Force overwriting existing attribute.                                                                                                 |
 
 ## Span.get_extension {#get_extension tag="classmethod" new="2"}
 
diff --git a/website/docs/api/token.md b/website/docs/api/token.md
index 78e7513c3..24816b401 100644
--- a/website/docs/api/token.md
+++ b/website/docs/api/token.md
@@ -63,6 +63,7 @@ For details, see the documentation on
 | `method`  | callable | Set a custom method on the object, for example `token._.compare(other_token)`.                                                          |
 | `getter`  | callable | Getter function that takes the object and returns an attribute value. Is called when the user accesses the `._` attribute.              |
 | `setter`  | callable | Setter function that takes the `Token` and a value, and modifies the object. Is called when the user writes to the `Token._` attribute. |
+| `force`   | bool     | Force overwriting existing attribute.                                                                                                   |
 
 ## Token.get_extension {#get_extension tag="classmethod" new="2"}