diff --git a/db/zm_update-1.31.18.sql b/db/zm_update-1.31.18.sql
index 56e15dd3a..fd000bcfa 100644
--- a/db/zm_update-1.31.18.sql
+++ b/db/zm_update-1.31.18.sql
@@ -10,3 +10,14 @@ SET @s = (SELECT IF(
 
 PREPARE stmt FROM @s;
 EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM Filters WHERE Name = 'Update DiskSpace'
+      AND Query = '{"terms":[{"attr":"DiskSpace","op":"IS","val":"NULL"}],"sort_field":"Id","sort_asc":"1","limit":"100"}'
+    ) > 0,
+    "SELECT 'Update Disk Space Filter already exists.'",
+    "INSERT INTO Filters (Name,Query,UpdateDiskSpace,Background) values ('Update DiskSpace','{\"terms\":[{\"attr\":\"DiskSpace\",\"op\":\"IS\",\"val\":\"NULL\"}],\"sort_field\":\"Id\",\"sort_asc\":\"1\",\"limit\":\"100\"}',1,1)"
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;