diff --git a/db_test.ts b/db_test.ts
index ef8c057..3d84f4a 100644
--- a/db_test.ts
+++ b/db_test.ts
@@ -1,10 +1,10 @@
 import { assertEquals } from "std/assert/mod.ts";
 import { EhDb, EhFile, GMeta, PMeta } from "./db.ts";
 import { TaskType } from "./task.ts";
-import { remove_if_exists } from "./test_base.ts";
+import { DB_PERMISSION, remove_if_exists } from "./test_base.ts";
 import { sure_dir } from "./utils.ts";
 
-Deno.test("DbTest", async () => {
+Deno.test({ name: "DbTest", permissions: DB_PERMISSION }, async () => {
     await sure_dir("./test/db");
     await remove_if_exists("./test/db/data.db");
     const db = new EhDb("./test/db");
diff --git a/test_base.ts b/test_base.ts
index 186c98f..ea4e871 100644
--- a/test_base.ts
+++ b/test_base.ts
@@ -10,6 +10,12 @@ export const API_PERMISSION: Deno.PermissionOptions = {
     ],
 };
 
+export const DB_PERMISSION: Deno.PermissionOptions = {
+    env: ["DB_USE_FFI"],
+    read: ["./test"],
+    write: ["./test"],
+};
+
 export async function remove_if_exists(f: string) {
     if (await exists(f)) await Deno.remove(f, { "recursive": true });
 }