diff --git a/phpBB/phpbb/cache/driver/memory.php b/phpBB/phpbb/cache/driver/memory.php
index 052f40c243..eba9549877 100644
--- a/phpBB/phpbb/cache/driver/memory.php
+++ b/phpBB/phpbb/cache/driver/memory.php
@@ -51,10 +51,11 @@ abstract class memory extends \phpbb\cache\driver\base
 	function load()
 	{
 		// grab the global cache
-		$this->vars = $this->_read('global');
+		$data = $this->_read('global');
 
-		if ($this->vars !== false)
+		if ($data !== false)
 		{
+			$this->vars = $data;
 			return true;
 		}