diff --git a/config.inc.php3 b/config.inc.php3
index bc9361001..151b8cd6d 100755
--- a/config.inc.php3
+++ b/config.inc.php3
@@ -85,6 +85,8 @@ $cfgShowSQL      = true;
 $cfgModifyDeleteAtLeft  = true;
 $cfgModifyDeleteAtRight = false;
 
+$cfgSkipLockedTables = false;	// mark used tables, make possible to show locked tables (since 3.23.30)
+
 $cfgDefaultLang = "en";  		// default language to use, if not browser-defined or user-defined
 // $cfgLang = "en";  			// force: always use this language - must be defined in select_lang.inc.php3
 require("./select_lang.inc.php3");	// load language file