diff --git a/SQL/0000-00-00-schema.sql b/SQL/0000-00-00-schema.sql
index d032c377fb0..abb5dd9a732 100644
--- a/SQL/0000-00-00-schema.sql
+++ b/SQL/0000-00-00-schema.sql
@@ -252,7 +252,7 @@ CREATE TABLE `test_names` (
   `ID` int(10) unsigned NOT NULL auto_increment,
   `Test_name` varchar(255) default NULL,
   `Full_name` varchar(255) default NULL,
-  `Sub_group` int(11) unsigned default NULL,
+  `Sub_group` int(11) unsigned NOT NULL,
   `IsDirectEntry` boolean default NULL,
   PRIMARY KEY  (`ID`),
   UNIQUE KEY `Test_name` (`Test_name`),
diff --git a/SQL/New_patches/2023-11-07-No-Null-Subgroup.sql b/SQL/New_patches/2023-11-07-No-Null-Subgroup.sql
new file mode 100644
index 00000000000..2a7dfc9bd25
--- /dev/null
+++ b/SQL/New_patches/2023-11-07-No-Null-Subgroup.sql
@@ -0,0 +1 @@
+ALTER TABLE test_names CHANGE Sub_group Sub_group int(11) unsigned not null;
diff --git a/modules/dashboard/test/DashboardTest.php b/modules/dashboard/test/DashboardTest.php
index addaa3c310d..4a42da2ca7c 100644
--- a/modules/dashboard/test/DashboardTest.php
+++ b/modules/dashboard/test/DashboardTest.php
@@ -121,6 +121,7 @@ function setUp(): void
             [
                 'ID'        => '111',
                 'Test_name' => 'TestName11111111111',
+                'Sub_group' => 1,
             ]
         );
         $this->DB->insert(