diff --git a/docs/core-concepts/1221-action.md b/docs/core-concepts/1221-action.md
index 1e83a244..583b48de 100644
--- a/docs/core-concepts/1221-action.md
+++ b/docs/core-concepts/1221-action.md
@@ -111,7 +111,7 @@ dagger.#Plan & {
 
 Note that `#AddHello` was integrated *directly* into the plan, whereas `core.#WriteFile` was integrated *indirectly*, by virtue of being a sub-action of `#AddHello`.
 
-To learn more about the structure of a plan, see [it all begins with a plan](./1202-plan).
+To learn more about the structure of a plan, see [it all begins with a plan](./1202-plan.md).
 
 ### Discovery
 
diff --git a/docs/references/1222-core-actions-reference.md b/docs/references/1222-core-actions-reference.md
index 5bf86ed8..b626c63d 100644
--- a/docs/references/1222-core-actions-reference.md
+++ b/docs/references/1222-core-actions-reference.md
@@ -7,7 +7,7 @@ displayed_sidebar: europa
 
 Core Actions are primitives implemented by the Dagger Engine itself. They can be combined into higher-level composite actions. Their definitions can be imported in the `dagger.io/dagger/core` package.
 
-For more information about Dagger Actions, see [Dagger Actions](../core-concepts/1221-action).
+For more information about Dagger Actions, see [Dagger Actions](../core-concepts/1221-action.md).
 
 The following core actions are available: