diff --git a/libraries/cms/plugin/helper.php b/libraries/cms/plugin/helper.php
index 17ddc2c7824cf..ad80a0acb06a7 100644
--- a/libraries/cms/plugin/helper.php
+++ b/libraries/cms/plugin/helper.php
@@ -297,7 +297,7 @@ protected static function load()
 
 		$levels = implode(',', $user->getAuthorisedViewLevels());
 
-		if (!static::$plugins = $cache->get($levels))
+		if (!(static::$plugins = $cache->get($levels)))
 		{
 			$db = JFactory::getDbo();
 			$query = $db->getQuery(true)