diff --git a/docs/api/array.md b/docs/api/array.md
index 0eadb12..445f236 100644
--- a/docs/api/array.md
+++ b/docs/api/array.md
@@ -25,7 +25,7 @@ In addition some modifiers can be applied:
     `def add(x: Float[Array, "#foo"], y: Float[Array, "#foo"]) -> Float[Array, "#foo"]`.
 - Prepend `_` to an axis to disable any runtime checking of that axis (so that it can be used just as documentation). This can also be used as just `_` on its own: e.g. `"b c _ _"`.
 - Documentation-only names (i.e. they're ignored by jaxtyping) can be handled by prepending a name followed by `=` e.g. `Float[Array, "rows=4 cols=3"]`.
-- Prepend `?` to an axis to indicate that its size can vary within a PyTree structure. (See [PyTree annotations](../pytree/).)
+- Prepend `?` to an axis to indicate that its size can vary within a PyTree structure. (See [PyTree annotations](./pytree.md).)
 
 When using multiple modifiers, their order does not matter.