diff --git a/migrations/000.488.sql b/migrations/000.488.sql
new file mode 100644
index 0000000..22c995c
--- /dev/null
+++ b/migrations/000.488.sql
@@ -0,0 +1,4 @@
+ALTER TABLE orders ADD COLUMN purchase_event_sent timestamp with time zone DEFAULT NULL;
+
+-- Populate existing fields so we won't resend purchase events on visits to thank you pages
+UPDATE orders set purchase_event_sent = now();
\ No newline at end of file