diff --git a/db/zm_update-1.37.53.sql b/db/zm_update-1.37.53.sql
new file mode 100644
index 000000000..8b3456227
--- /dev/null
+++ b/db/zm_update-1.37.53.sql
@@ -0,0 +1,18 @@
+--
+-- Update Monitors table to have EventCloseMode
+--
+
+SELECT 'Checking for EventCloseMode in Monitors';
+SET @s = (SELECT IF(
+  (SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE table_name = 'Monitors'
+  AND table_schema = DATABASE()
+  AND column_name = 'EventCloseMode'
+  ) > 0,
+"ALTER TABLE Monitors MODIFY `EventCloseMode`  enum('system', 'time', 'duration', 'idle', 'alarm') NOT NULL DEFAULT 'system'",
+"ALTER TABLE Monitors ADD `EventCloseMode`  enum('system', 'time', 'duration', 'idle', 'alarm') NOT NULL DEFAULT 'system' AFTER SectionLengthWarn"
+));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;