diff --git a/_guides/javascript/config.js b/_guides/javascript/config.js
index 430d85b7318..26107d70d9b 100644
--- a/_guides/javascript/config.js
+++ b/_guides/javascript/config.js
@@ -24,7 +24,7 @@ if(tables){
                 const decoration = td.firstElementChild.lastElementChild.firstElementChild;
                 const iconDecoration = decoration.children.item(0);
                 const collapsibleSpan = decoration.children.item(1);
-                const descDiv = td.firstElementChild.children.item(1);
+                const descDiv = td.firstElementChild.querySelector(".description");
                 const collapsibleHandler = makeCollapsibleHandler(descDiv, td, row, collapsibleSpan, iconDecoration);
                 row.addEventListener('click', collapsibleHandler);
             }