diff --git a/cake/libs/cache/file.php b/cake/libs/cache/file.php
index 087ba0aa1d5..a77c5626667 100644
--- a/cake/libs/cache/file.php
+++ b/cake/libs/cache/file.php
@@ -138,9 +138,12 @@ function write($key, &$data, $duration) {
 
 		$expires = time() + $duration;
 		$contents = $expires . $lineBreak . $data . $lineBreak;
+		$old = umask(0);
+		$handle = fopen($this->_File->path, 'a');
+		umask($old);
 
-		if (!$handle = fopen($this->_File->path, 'a')) {
-		    return false;
+		if (!$handle) {
+			return false;
 		}
 
 		if ($this->settings['lock']) {