diff --git a/packages/client/src/Client.ts b/packages/client/src/Client.ts
index 18e76c0..28f2c61 100644
--- a/packages/client/src/Client.ts
+++ b/packages/client/src/Client.ts
@@ -239,13 +239,13 @@ export class Client extends ClientEventEmitter {
     const mocha = this.mockedMocha;
     // Building a fake file path to emit some path via events
     const fakeFilePath = "/mocha-remote-client/mocked-test-suite.js";
-    this.suite.emit(EVENT_FILE_PRE_REQUIRE, global, fakeFilePath, mocha);
+    this.suite.emit(EVENT_FILE_PRE_REQUIRE, globalThis, fakeFilePath, mocha);
     // Assing in the context to make it available in hooks
     Object.assign(this.suite.ctx, context);
     // We're treating the value returned from the `result` as the `module.exports` from a file.
     const result = await this.config.tests(context);
     this.suite.emit(EVENT_FILE_REQUIRE, result, fakeFilePath, mocha);
-    this.suite.emit(EVENT_FILE_POST_REQUIRE, global, fakeFilePath, mocha);
+    this.suite.emit(EVENT_FILE_POST_REQUIRE, globalThis, fakeFilePath, mocha);
     this.debug("Loaded %d test(s)", this.suite.total());
   }
 
diff --git a/packages/client/src/browser/index.ts b/packages/client/src/browser/index.ts
index 91e5ae8..0a03c1e 100644
--- a/packages/client/src/browser/index.ts
+++ b/packages/client/src/browser/index.ts
@@ -2,7 +2,7 @@ import { EventEmitter } from "events";
 
 import { Client } from "..";
 
-Client.WebSocket = global.WebSocket;
+Client.WebSocket = WebSocket;
 Client.EventEmitter = EventEmitter;
 
 export * from "..";