diff --git a/php/src/Festivity.php b/php/src/Festivity.php
index 0f70eaa..7e8f03d 100644
--- a/php/src/Festivity.php
+++ b/php/src/Festivity.php
@@ -33,7 +33,7 @@ public function __construct(array $LitEvent)
         $this->grade_lcl      = $LitEvent['grade_lcl'];
         $this->common         = $LitEvent['common'];
         $this->common_lcl     = $LitEvent['common_lcl'];
-        $this->liturgicalYear = $LitEvent['liturgical_year'];
+        $this->liturgicalYear = $LitEvent['liturgical_year'] ?? '';
         $this->displayGrade   = $LitEvent['display_grade'];
     }
 }