diff --git a/ajax.php b/ajax.php
index 6dfd49f0..fc07dc91 100644
--- a/ajax.php
+++ b/ajax.php
@@ -142,7 +142,7 @@ class ajax_common
 		// Exit if board is disabled via ON/OFF trigger or by admin
 		if ($bb_cfg['board_disable'] || file_exists(BB_DISABLED))
 		{
-			if ($action_params[AJAX_ALWAYS_ACTIVE] !== true)
+			if (!isset($action_params[AJAX_ALWAYS_ACTIVE]) || $action_params[AJAX_ALWAYS_ACTIVE] === false)
 			{
 				if ($bb_cfg['board_disable'])
 				{