diff --git a/db/zm_create.sql.in b/db/zm_create.sql.in
index 06bdf0f85..9c237b8a0 100644
--- a/db/zm_create.sql.in
+++ b/db/zm_create.sql.in
@@ -499,6 +499,7 @@ CREATE TABLE `Monitors` (
   `DefaultView` enum('Events','Control') NOT NULL default 'Events',
   `DefaultRate` smallint(5) unsigned NOT NULL default '100',
   `DefaultScale` smallint(5) unsigned NOT NULL default '100',
+  `SignalCheckPoints` INT UNSIGNED NOT NULL default '0',
   `SignalCheckColour` varchar(32) NOT NULL default '#0000BE',
   `WebColour` varchar(32) NOT NULL default 'red',
   `Exif` tinyint(1) unsigned NOT NULL default '0',
diff --git a/db/zm_update-1.31.42.sql b/db/zm_update-1.31.42.sql
new file mode 100644
index 000000000..adb004baf
--- /dev/null
+++ b/db/zm_update-1.31.42.sql
@@ -0,0 +1,12 @@
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+     AND table_name = 'Monitors'
+     AND column_name = 'SignalCheckPoints'
+    ) > 0,
+"SELECT 'Column SignalCheckPoints already exists in Storage'",
+"ALTER TABLE `Monitors` ADD `SignalCheckPoints` INT UNSIGNED NOT NULL default '0' AFTER `DefaultScale`"
+));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;