diff --git a/lib/Cake/Model/ModelValidator.php b/lib/Cake/Model/ModelValidator.php
index 7c34d94e4..6f2c02d2b 100644
--- a/lib/Cake/Model/ModelValidator.php
+++ b/lib/Cake/Model/ModelValidator.php
@@ -513,7 +513,7 @@ class ModelValidator implements ArrayAccess, IteratorAggregate, Countable {
  *
  * @return ArrayIterator
  */
-	public function getIterator() {
+	public function getIterator() : Traversable {
 		$this->_parseRules();
 		return new ArrayIterator($this->_fields);
 	}
diff --git a/lib/Cake/Model/Validator/CakeValidationSet.php b/lib/Cake/Model/Validator/CakeValidationSet.php
index e04453e05..68ff212e7 100644
--- a/lib/Cake/Model/Validator/CakeValidationSet.php
+++ b/lib/Cake/Model/Validator/CakeValidationSet.php
@@ -354,7 +354,7 @@ class CakeValidationSet implements ArrayAccess, IteratorAggregate, Countable {
  *
  * @return ArrayIterator
  */
-	public function getIterator() {
+	public function getIterator() : Traversable {
 		return new ArrayIterator($this->_rules);
 	}