diff --git a/src/pages/dyn/vector_calculus.astro b/src/pages/dyn/vector_calculus.astro
index 1703819c..baf354b4 100644
--- a/src/pages/dyn/vector_calculus.astro
+++ b/src/pages/dyn/vector_calculus.astro
@@ -43,10 +43,6 @@ import DisplayTable from "../../components/DisplayTable.astro"
         </ul>
     </li>
     <li class='list-group-item py-0'><a class='text-decoration-none subsection' href='#chain_rule'>Chain rule</a>
-        <ul class='list-group list-group-flush py-0'> 
-            <li class='list-group-item py-0'><a class='text-decoration-none subsubsection' href='#scalars'>Scalars</a></li>
-            <li class='list-group-item py-0'><a class='text-decoration-none subsubsection' href='#second_derivative'>Second derivative</a></li>
-        </ul>
     </li>
     <li class='list-group-item py-0'><a class='text-decoration-none subsection' href='#integration'>Integration</a>
         <ul class='list-group list-group-flush py-0'>