diff --git a/README.md b/README.md
index 7742d80..6548b69 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 * Contributors:      Stefan Kalscheuer
 * Requires at least: 3.9
 * Tested up to:      4.6
-* Stable tag:        1.2.0
+* Stable tag:        1.2.1
 * License:           GPLv3 or later
 * License URI:       https://www.gnu.org/licenses/gpl-3.0.html
 
@@ -32,8 +32,8 @@ The plugin is capable of handling multisite installations.
 * Goto _Settings_ -> _Statify Blacklist_ to configure the plugin
 
 ### Requirements ###
-* PHP 5.2.4
-* WordPress 3.9
+* PHP 5.2.4 or above
+* WordPress 3.9 or above
 * Statify plugin installed and activated (tested up to 1.4.3)
 
 ## Frequently Asked Questions ##
@@ -64,6 +64,10 @@ If you like to have this feature, please leave a feature request in GitHub or th
 1. Statify Blacklist settings page
 
 ## Changelog ##
+
+### 1.2.1 / 10.10.2016 ###
+* Fix live filter configuration check
+
 ### 1.2.0 / 29.08.2016 ###
 * Switched from `in_array()` to faster `isset()` for referer checking
 * Optional cron execiton implemented
diff --git a/inc/statifyblacklist.class.php b/inc/statifyblacklist.class.php
index ecaaee6..d97f445 100644
--- a/inc/statifyblacklist.class.php
+++ b/inc/statifyblacklist.class.php
@@ -38,7 +38,7 @@ class StatifyBlacklist {
 	 * Class constructor
 	 *
 	 * @since   1.0.0
-	 * @changed 1.1.2
+	 * @changed 1.2.1
 	 */
 	public function __construct() {
 		/* Skip on autosave or AJAX */
@@ -53,7 +53,7 @@ class StatifyBlacklist {
 		self::$multisite = ( is_multisite() && array_key_exists( STATIFYBLACKLIST_BASE, (array) get_site_option( 'active_sitewide_plugins' ) ) );
 
 		/* Add Filter to statify hook if enabled */
-		if ( self::$_options['active_referer'] != 1 ) {
+		if ( self::$_options['active_referer'] != 0 ) {
 			add_filter( 'statify_skip_tracking', array( 'StatifyBlacklist', 'apply_blacklist_filter' ) );
 		}
 
diff --git a/statify-blacklist.php b/statify-blacklist.php
index 99bfd50..eaf5ea2 100644
--- a/statify-blacklist.php
+++ b/statify-blacklist.php
@@ -8,7 +8,7 @@ Author:      Stefan Kalscheuer
 Author URI:  https://stklcode.de
 Plugin URI:  https://wordpress.org/plugins/statify-blacklist
 License:     GPLv3 or later
-Version:     1.2.0
+Version:     1.2.1
 */
 
 /* Quit */