diff --git a/cake/libs/model/cake_schema.php b/cake/libs/model/cake_schema.php
index 1e3a3d924..5a99bcdd2 100644
--- a/cake/libs/model/cake_schema.php
+++ b/cake/libs/model/cake_schema.php
@@ -116,6 +116,9 @@ class CakeSchema extends Object {
 		foreach ($data as $key => $val) {
 			if (!empty($val)) {
 				if (!in_array($key, array('plugin', 'name', 'path', 'file', 'connection', 'tables', '_log'))) {
+					if ($key[0] === '_') {
+						continue;
+					}
 					$this->tables[$key] = $val;
 					unset($this->{$key});
 				} elseif ($key !== 'tables') {
diff --git a/cake/tests/cases/libs/model/cake_schema.test.php b/cake/tests/cases/libs/model/cake_schema.test.php
index 02278a88e..d22f2b653 100644
--- a/cake/tests/cases/libs/model/cake_schema.test.php
+++ b/cake/tests/cases/libs/model/cake_schema.test.php
@@ -80,6 +80,14 @@ class MyAppSchema extends CakeSchema {
 		'indexes' => array('PRIMARY' => array('column' => 'id', 'unique' => true)),
 	);
 
+/**
+ * _foo property
+ *
+ * @var array
+ * @access protected
+ */
+	protected $_foo = array('bar');
+
 /**
  * setup method
  *
@@ -99,6 +107,19 @@ class MyAppSchema extends CakeSchema {
  */
 	function teardown($version) {
 	}
+
+/**
+ * getVar method
+ *
+ * @param string $var Name of var
+ * @return mixed
+ */
+	public function getVar($var) {
+		if (!isset($this->$var)) {
+			return null;
+		}
+		return $this->$var;
+	}
 }
 
 /**
@@ -750,6 +771,8 @@ class CakeSchemaTest extends CakeTestCase {
 			),
 		);
 		$this->assertEqual($expected, $compare);
+		$this->assertNull($New->getVar('comments'));
+		$this->assertEqual($New->getVar('_foo'), array('bar'));
 
 		$tables = array(
 			'missing' => array(