diff --git a/docs/sphinx/conf.py b/docs/sphinx/conf.py
index dacd5bd..712e2cd 100644
--- a/docs/sphinx/conf.py
+++ b/docs/sphinx/conf.py
@@ -48,7 +48,7 @@
     "sphinx_immaterial",
     "sphinx.ext.intersphinx",
     "sphinx.ext.autosectionlabel",
-    "sphinx_immaterial.cppreference",
+    "sphinx_immaterial.apidoc.cpp.cppreference",
 ]
 
 intersphinx_mapping = {