diff --git a/cake/libs/cake_response.php b/cake/libs/cake_response.php
index 60259f3be..d2217efbd 100644
--- a/cake/libs/cake_response.php
+++ b/cake/libs/cake_response.php
@@ -614,7 +614,8 @@ class CakeResponse {
 			$time = strtotime($time);
 		}
 		$this->header(array(
-			'Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
+			'Date' => gmdate("D, j M Y G:i:s ", time()) . 'GMT',
+			'Last-Modified' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
 			'Expires' => gmdate("D, j M Y H:i:s", $time) . " GMT",
 			'Cache-Control' => 'public, max-age=' . ($time - time()),
 			'Pragma' => 'cache'
diff --git a/cake/tests/cases/libs/cake_response.test.php b/cake/tests/cases/libs/cake_response.test.php
index d2e446507..eee0cfc69 100644
--- a/cake/tests/cases/libs/cake_response.test.php
+++ b/cake/tests/cases/libs/cake_response.test.php
@@ -230,6 +230,7 @@ class CakeResponseTestCase extends CakeTestCase {
 		$time = '+1 day';
 		$expected = array(
 			'Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
+			'Last-Modified' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
 			'Expires' => gmdate("D, j M Y H:i:s", strtotime($time)) . " GMT",
 			'Cache-Control' => 'public, max-age=' . (strtotime($time) - time()),
 			'Pragma' => 'cache'
@@ -242,6 +243,7 @@ class CakeResponseTestCase extends CakeTestCase {
 		$time = '+5 day';
 		$expected = array(
 			'Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
+			'Last-Modified' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
 			'Expires' => gmdate("D, j M Y H:i:s", strtotime($time)) . " GMT",
 			'Cache-Control' => 'public, max-age=' . (strtotime($time) - time()),
 			'Pragma' => 'cache'
@@ -254,6 +256,7 @@ class CakeResponseTestCase extends CakeTestCase {
 		$time = time();
 		$expected = array(
 			'Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
+			'Last-Modified' => gmdate("D, j M Y G:i:s ", $since) . 'GMT',
 			'Expires' => gmdate("D, j M Y H:i:s", $time) . " GMT",
 			'Cache-Control' => 'public, max-age=0',
 			'Pragma' => 'cache'