diff --git a/lib/Cake/View/Helper/FormHelper.php b/lib/Cake/View/Helper/FormHelper.php
index 8e7ef063ba9..245c2d97423 100644
--- a/lib/Cake/View/Helper/FormHelper.php
+++ b/lib/Cake/View/Helper/FormHelper.php
@@ -946,7 +946,7 @@ public function inputs($fields = null, $blacklist = null) {
 	public function input($fieldName, $options = array()) {
 		$this->setEntity($fieldName);
 
-		$options = array_merge(
+		$options = Set::merge(
 			array('before' => null, 'between' => null, 'after' => null, 'format' => null),
 			$this->_inputDefaults,
 			$options