diff --git a/mkdocs.yml b/mkdocs.yml
index d5ebcd49..476f7d49 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -14,6 +14,7 @@ theme:
     - navigation.expand
     - navigation.indexes
     - navigation.sections
+    - toc.integrate
 
 plugins:
   - search