diff --git a/resources/classes/switch_settings.php b/resources/classes/switch_settings.php
index 74a490ac2b..186dde3098 100644
--- a/resources/classes/switch_settings.php
+++ b/resources/classes/switch_settings.php
@@ -229,6 +229,7 @@ if (!class_exists('switch_settings')) {
 					}
 					$x++;
 				}
+				unset($array);
 
 			//add the missing default settings
 				if (count($missing) > 0) {