diff --git a/src/Psalm/Type.php b/src/Psalm/Type.php
index <HASH>..<HASH> 100644
--- a/src/Psalm/Type.php
+++ b/src/Psalm/Type.php
@@ -78,6 +78,7 @@ abstract class Type
         'array-key' => true,
         'key-of' => true,
         'value-of' => true,
+        'non-empty-countable' => true,
     ];
 
     /**
Add non-empty-countable to Psalm reserved words