diff --git a/resources/views/meta.php b/resources/views/meta.php
index 3e6fb6b..1d5e01c 100644
--- a/resources/views/meta.php
+++ b/resources/views/meta.php
@@ -58,5 +58,6 @@ namespace PHPSTORM_META {
     override(\last(0), elementType(0));
     override(\with(0), type(0));
     override(\tap(0), type(0));
+    override(\optional(0), type(0));
 
 }