diff --git a/javascripts/discourse/components/toc-contents.gjs b/javascripts/discourse/components/toc-contents.gjs
index 4265c06..c43665e 100644
--- a/javascripts/discourse/components/toc-contents.gjs
+++ b/javascripts/discourse/components/toc-contents.gjs
@@ -105,7 +105,7 @@ export default class TocContents extends Component {
             }
           : null;
       })
-      .compact();
+      .filter((item) => item !== null);
   }
 
   @debounce(SCROLL_DEBOUNCE)