diff --git a/page.php b/page.php
index 30f4f92..b3f6929 100644
--- a/page.php
+++ b/page.php
@@ -2,7 +2,7 @@
 <?php
 $currentThematique = get_the_terms(get_the_ID(), 'thematiques')[0] ?? '';
 $mainThematique = getMainThematique($currentThematique);
-$thematiqueColorSlug = $mainThematique->slug;
+$thematiqueColorSlug = $mainThematique->slug ?? null;
 
 ?>