diff --git a/packages/hydrooj/src/plugin-api.ts b/packages/hydrooj/src/plugin-api.ts
index 8c4917e6a..06a8e0296 100644
--- a/packages/hydrooj/src/plugin-api.ts
+++ b/packages/hydrooj/src/plugin-api.ts
@@ -1,4 +1,5 @@
 import serialize from 'serialize-javascript';
+import pwsh from './lib/hash.hydro';
 import db from './service/db';
 
 export { nanoid } from 'nanoid';
@@ -34,7 +35,6 @@ export * as JudgeHandler from './handler/judge';
 export { registerResolver, registerValue, registerUnion } from './handler/api';
 export { postJudge } from './handler/judge';
 export { Collections } from './service/db';
-// export { Collections } from './interface';
 export { Service, Context } from './context';
 export { buildContent } from './lib/content';
 export { default as rating } from './lib/rating';
@@ -50,4 +50,4 @@ export {
 export { UiContextBase } from './service/layers/base';
 export * as StorageService from './service/storage';
 export { EventMap } from './service/bus';
-export { db };
+export { db, pwsh };