diff --git a/src/Validators/BaseValidator.php b/src/Validators/BaseValidator.php
index 6549bd93..c325b265 100644
--- a/src/Validators/BaseValidator.php
+++ b/src/Validators/BaseValidator.php
@@ -4,6 +4,11 @@
 
 class BaseValidator implements ValidatorInterface
 {
+    /**
+    * @var string
+    */
+    protected $classname;
+
     /**
      * Coerce given value to the type the validator is validating against.
      * PLEASE NOTE: no checks are performed on the given $value.