diff --git a/database/migrations/0008-state_users_plug_holes.ts b/database/migrations/0008-state_users_plug_holes.ts
new file mode 100644
index 000000000..f2baf86b0
--- /dev/null
+++ b/database/migrations/0008-state_users_plug_holes.ts
@@ -0,0 +1,24 @@
+/* MIGRATION TO CLEAN PRODUCTION DATA
+ *
+ * some entries in the state_users table do not have an email.
+ * this is required tho to work with the new environment.
+ * to mitigate 38 out of 50 emails could be restored from
+ * login_users.
+ */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  // Fill in missing emails from login_users
+  // SELECT COUNT(*) FROM state_users LEFT JOIN login_users ON login_users.pubkey = state_users.public_key WHERE state_users.email = '';
+  // Before: 50
+  // After: 12
+  await queryFn(
+    `UPDATE state_users
+     INNER JOIN login_users ON state_users.public_key = login_users.pubkey
+     SET state_users.email = IF(state_users.email = '', login_users.email, state_users.email)
+     WHERE state_users.email = '';`,
+  )
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  return [] // cannot undelete things
+}