diff --git a/src/Type/Definition/InputObjectField.php b/src/Type/Definition/InputObjectField.php
index 1744e51..68f2a32 100644
--- a/src/Type/Definition/InputObjectField.php
+++ b/src/Type/Definition/InputObjectField.php
@@ -24,7 +24,7 @@ class InputObjectField
     public $description;
 
     /**
-     * @var callback|InputType
+     * @var callable|InputType
      */
     public $type;