diff --git a/src/Psalm/Internal/Provider/ClassLikeStorageProvider.php b/src/Psalm/Internal/Provider/ClassLikeStorageProvider.php
index c64fff1d5..750aeaaab 100644
--- a/src/Psalm/Internal/Provider/ClassLikeStorageProvider.php
+++ b/src/Psalm/Internal/Provider/ClassLikeStorageProvider.php
@@ -156,6 +156,7 @@ class ClassLikeStorageProvider
     public static function deleteAll()
     {
         self::$storage = [];
+        self::$new_storage = [];
     }
 
     /**