diff --git a/src/worker/store.ts b/src/worker/store.ts
index c21b5d642..dcde28349 100644
--- a/src/worker/store.ts
+++ b/src/worker/store.ts
@@ -42,6 +42,9 @@ import * as Messenger from './modules/messenger.js';
 import * as History from './modules/history.js';
 import * as Calendar from './modules/calendar.js';
 
+declare var WorkerGlobalScope: any
+declare var SharedWorkerGlobalScope: any
+
 interface StoreConfig {
     ApiConfig: any,
     AppConfig: any,
diff --git a/src/worker/types.ts b/src/worker/types.ts
index 8bc6e72f6..17af4ec0f 100644
--- a/src/worker/types.ts
+++ b/src/worker/types.ts
@@ -2,12 +2,6 @@
 // specific methods for each module
 type Callback = (...args: any[]) => void
 
-declare module globalThis {
-    let CryptPad_Messages: any;
-    let CryptPad_AppConfig: any;
-    let window: any;
-}
-
 export type ModuleConfig = {
     emit: Function
 }