diff --git a/migration/320-trunk/021_BF_1754751.sql b/migration/320-trunk/021_BF_1754751.sql
new file mode 100644
index 0000000000..e06382e60e
--- /dev/null
+++ b/migration/320-trunk/021_BF_1754751.sql
@@ -0,0 +1,5 @@
+UPDATE AD_WINDOW
+   SET windowtype = 'M'
+ WHERE ad_window_id = 319 AND windowtype = 'T';
+
+COMMIT;
\ No newline at end of file
diff --git a/migration/320-trunk/postgresql/021_BF_1754751.sql b/migration/320-trunk/postgresql/021_BF_1754751.sql
new file mode 100644
index 0000000000..e06382e60e
--- /dev/null
+++ b/migration/320-trunk/postgresql/021_BF_1754751.sql
@@ -0,0 +1,5 @@
+UPDATE AD_WINDOW
+   SET windowtype = 'M'
+ WHERE ad_window_id = 319 AND windowtype = 'T';
+
+COMMIT;
\ No newline at end of file