diff --git a/lib/Cake/Cache/Engine/FileEngine.php b/lib/Cake/Cache/Engine/FileEngine.php
index 155d1950c..5bbbd937e 100644
--- a/lib/Cake/Cache/Engine/FileEngine.php
+++ b/lib/Cake/Cache/Engine/FileEngine.php
@@ -132,7 +132,7 @@ class FileEngine extends CacheEngine {
 		}
 
 		$expires = time() + $duration;
-		$contents = implode([$expires, $lineBreak, $data, $lineBreak]);
+		$contents = implode(array($expires, $lineBreak, $data, $lineBreak));
 
 		if ($this->settings['lock']) {
 			$this->_File->flock(LOCK_EX);