diff --git a/docs/index.rst b/docs/index.rst
index 5f784ad..d10b619 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -34,7 +34,6 @@ optimal speed and bandwidth during operation.
 
       * :doc:`Hardware support <reference/hardware-support>`
       * :doc:`Cluster design <reference/cluster-design>`
-      * `MI300 Series Cluster Architecture (External) <https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/other/instinct-mi300-series-cluster-reference-guide.pdf>`_
 
 .. note::
 
diff --git a/docs/sphinx/_toc.yml.in b/docs/sphinx/_toc.yml.in
index cea19f3..26df318 100644
--- a/docs/sphinx/_toc.yml.in
+++ b/docs/sphinx/_toc.yml.in
@@ -21,6 +21,4 @@ subtrees:
   - file: reference/hardware-support
     title: Hardware support
   - file: reference/cluster-design
-    title: Cluster design
-  - url: https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/other/instinct-mi300-series-cluster-reference-guide.pdf
-    title: MI300 series cluster architecture
+    title: Cluster design
\ No newline at end of file