diff --git a/src/Utilities/Helper.php b/src/Utilities/Helper.php
index 923a28c3..5683ed91 100644
--- a/src/Utilities/Helper.php
+++ b/src/Utilities/Helper.php
@@ -337,7 +337,7 @@ public static function toJsonScript(array $parameters, int $options = 0): string
         return str_replace($replacements, $values, $json);
     }
 
-    public static function isJavascript(string|array|object $value, string $key): bool
+    public static function isJavascript(string|array|object|null $value, string $key): bool
     {
         if (empty($value) || is_array($value) || is_object($value)) {
             return false;