diff --git a/sphinx/conf.py b/sphinx/conf.py
index c894646..5017362 100644
--- a/sphinx/conf.py
+++ b/sphinx/conf.py
@@ -136,6 +136,7 @@
     "python": ("https://docs.python.org/3", None),
     "nexus": ("https://docs.quantinuum.com/nexus/", None),
     "pytket": ("https://docs.quantinuum.com/tket/api-docs/", None),
+    "tket": ("https://quantinuum.github.io/tket2/", None),
     "hugr": ("https://quantinuum.github.io/hugr/", None),
 }