diff --git a/includes/utilities.php b/includes/utilities.php
index b21b322..05bdf17 100644
--- a/includes/utilities.php
+++ b/includes/utilities.php
@@ -223,12 +223,15 @@ function build_page_chapter_index($blocks)
 			]);
 		}
 		if ($block['blockName'] == 'homegrade-content-blocks/questions-container') {
+			if (!$block || !$block['attrs'] || $block['attrs']['relatedPostId'] == 0) continue;
+			$shortTitle = get_field('short_title', $block['attrs']['relatedPostId']);
+
 			$anchor = isset($block['attrs']['anchor']) ? esc_html($block['attrs']['anchor']) : "questions-container-" .  $block['attrs']['relatedPostId'];
 
 			array_push($chapterBlockIndex, [
 				'block-type' =>  $block['blockName'],
 				'anchor' => '#' . $anchor,
-				'title' => get_the_title($block['attrs']['relatedPostId']),
+				'title' => $shortTitle ? $shortTitle : get_the_title($block['attrs']['relatedPostId']),
 			]);
 		}
 		if ($block['blockName'] == 'homegrade-content-blocks/vocabulaire-summary') {