diff --git a/src/Network/Struct.php b/src/Network/Struct.php
index 6142209..ec6ce36 100644
--- a/src/Network/Struct.php
+++ b/src/Network/Struct.php
@@ -111,7 +111,7 @@ public function addBigIntField(string $field): void {
 	 * @return bool
 	 */
 	public static function isValid(string $json): bool {
-		return simdjson_is_valid($json);
+		return simdjson_is_valid($json, static::JSON_DEPTH);
 	}
 
 	/**