diff --git a/db/zm_create.sql.in b/db/zm_create.sql.in
index d4efb5317..c9b2b6ea1 100644
--- a/db/zm_create.sql.in
+++ b/db/zm_create.sql.in
@@ -434,7 +434,7 @@ DROP TABLE IF EXISTS `Monitors`;
 CREATE TABLE `Monitors` (
   `Id` int(10) unsigned NOT NULL auto_increment,
   `Name` varchar(64) NOT NULL default '',
-  `Notes` TEXT NOT NULL default '',
+  `Notes` TEXT,
   `ServerId` int(10) unsigned,
   `StorageId`	smallint(5) unsigned default 0,
   `Type` enum('Local','Remote','File','Ffmpeg','Libvlc','cURL','WebSite','NVSocket') NOT NULL default 'Local',
diff --git a/db/zm_update-1.33.16.sql b/db/zm_update-1.33.16.sql
index aacfd9425..87058e3f8 100644
--- a/db/zm_update-1.33.16.sql
+++ b/db/zm_update-1.33.16.sql
@@ -5,7 +5,7 @@ SET @s = (SELECT IF(
       AND column_name = 'Notes'
     ) > 0,
     "SELECT 'Column Notes already exists in Monitors'",
-    "ALTER TABLE `Monitors` ADD `Notes` TEXT NOT NULL default '' AFTER `Name`"
+    "ALTER TABLE `Monitors` ADD `Notes` TEXT AFTER `Name`"
     ));
 
 PREPARE stmt FROM @s;