diff --git a/docs/setup/extensions/index.md b/docs/setup/extensions/index.md
index 1da2b0489..6300bb6ab 100644
--- a/docs/setup/extensions/index.md
+++ b/docs/setup/extensions/index.md
@@ -97,7 +97,7 @@ markdown_extensions:
   - pymdownx.superfences
 ```
 
-  [reference]: ../../reference/tooltips.md
+  [reference]: ../../reference/index.md
 
 ### Recommended configuration