diff --git a/src/NodaBlacklistedTerms.php b/src/NodaBlacklistedTerms.php
index ffab44c..6c10a22 100644
--- a/src/NodaBlacklistedTerms.php
+++ b/src/NodaBlacklistedTerms.php
@@ -231,7 +231,7 @@ final class NodaBlacklistedTerms {
      */
     public static function checkActorGivenNameIsBlacklisted(string $given_name):bool {
 
-        if (in_array(trim($given_name, ' ()[]?'), self::ACTOR_GIVEN_NAMES_BLACKLIST)) return true;
+        if (in_array(trim($given_name, ' ()[]?'), self::ACTOR_GIVEN_NAMES_BLACKLIST, true)) return true;
         else return false;
 
     }