diff --git a/bahnplan.web/database.upgrade.txt b/bahnplan.web/database.upgrade.txt
new file mode 100644
index 0000000..5e7dad5
--- /dev/null
+++ b/bahnplan.web/database.upgrade.txt
@@ -0,0 +1,4 @@
+add comment col:
+
+ALTER TABLE Legs
+ADD Comment TEXT;