diff --git a/CHANGELOG b/CHANGELOG
index c840cdb4..3b439c5d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+queXS 1.16.0 - Changes since 1.15.10
+
+
+
+ALTER TABLE `extension` CHANGE `extension` `extension` CHAR( 20 ) NOT NULL;
 ALTER TABLE `sample_var` ADD INDEX ( `var_id` );
 
 queXS 1.15.10 - Changes since 1.15.9
diff --git a/database/quexs.sql b/database/quexs.sql
index 965045a8..4c748283 100644
--- a/database/quexs.sql
+++ b/database/quexs.sql
@@ -355,7 +355,7 @@ INSERT INTO `day_of_week` (`day_of_week`) VALUES(7);
 
 CREATE TABLE `extension` (
   `extension_id` int(11) NOT NULL AUTO_INCREMENT,
-  `extension` char(10) COLLATE utf8_unicode_ci NOT NULL,
+  `extension` char(20) COLLATE utf8_unicode_ci NOT NULL,
   `password` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
   `status` tinyint(1) NOT NULL DEFAULT '0',
   `current_operator_id` bigint(20) DEFAULT NULL,