diff --git a/database/migrations/0017-delete_decay_start_block.ts b/database/migrations/0017-delete_decay_start_block.ts
new file mode 100644
index 000000000..819aa5c65
--- /dev/null
+++ b/database/migrations/0017-delete_decay_start_block.ts
@@ -0,0 +1,18 @@
+/* MIGRATION TO DELETE DECAY START BLOCK
+ *
+ * the decay start block is now specified as static value
+ * we can delete it from the database
+ */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  // Remove transactions with type 9 (start decay block). This should affect exactly 1 row
+  await queryFn(`DELETE FROM transactions WHERE transaction_type_id = 9;`)
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  // When rolling back the database this entry is newly created. This should not hurt in any way tho.
+  await queryFn(`
+    INSERT INTO transactions
+    VALUES(1682,9,0xC27BE999D7B4704E5F294099E780C5D6A275B165AFABFD8BECCEA39059CBB7B600000000000000000000000000000000,'','2021-05-13 15:46:31',NULL,NULL)
+  `)
+}