diff --git a/src/Options.php b/src/Options.php
index 785daf6..fcd4f0b 100644
--- a/src/Options.php
+++ b/src/Options.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ArchTech\Enums;
 
 trait Options