diff --git a/db/zm_update-1.31.23.sql b/db/zm_update-1.31.23.sql
index 46f72e57c..1e4b6795c 100644
--- a/db/zm_update-1.31.23.sql
+++ b/db/zm_update-1.31.23.sql
@@ -1,3 +1,35 @@
-ALTER TABLE Servers CHANGE COLUMN `zmstats.pl` `zmstats` BOOLEAN NOT NULL DEFAULT FALSE;
-ALTER TABLE Servers CHANGE COLUMN `zmaudit.pl` `zmaudit` BOOLEAN NOT NULL DEFAULT FALSE;
-ALTER TABLE Servers CHANGE COLUMN `zmtrigger.pl` `zmtrigger` BOOLEAN NOT NULL DEFAULT FALSE;
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Servers'
+      AND column_name = 'zmstats.pl'
+    ) > 0,
+    "ALTER TABLE Servers CHANGE COLUMN `zmstats.pl` `zmstats` BOOLEAN NOT NULL DEFAULT FALSE",
+    "SELECT 'zmstats.pl has already been changed to zmstats'"
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Servers'
+      AND column_name = 'zmaudit.pl'
+    ) > 0,
+    "ALTER TABLE Servers CHANGE COLUMN `zmaudit.pl` `zmaudit` BOOLEAN NOT NULL DEFAULT FALSE",
+    "SELECT 'zmaudit.pl has already been changed to zmaudit'"
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Servers'
+      AND column_name = 'zmtrigger.pl'
+    ) > 0,
+    "ALTER TABLE Servers CHANGE COLUMN `zmtrigger.pl` `zmtrigger` BOOLEAN NOT NULL DEFAULT FALSE",
+    "SELECT 'zmtrigger.pl has already been changed to zmtrigger'"
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;