diff --git a/packages/core/src/util/global.ts b/packages/core/src/util/global.ts
index 0910b69fe6..e4f01f5a93 100644
--- a/packages/core/src/util/global.ts
+++ b/packages/core/src/util/global.ts
@@ -12,8 +12,6 @@ declare var WorkerGlobalScope: any /** TODO #9100 */;
 // We don't want to include the whole node.d.ts this this compilation unit so we'll just fake
 // the global "global" var for now.
 declare var global: any /** TODO #9100 */;
-// Not yet available in TypeScript: https://github.com/Microsoft/TypeScript/pull/29332
-declare var globalThis: any /** TODO #9100 */;
 
 const __globalThis = typeof globalThis !== 'undefined' && globalThis;
 const __window = typeof window !== 'undefined' && window;
diff --git a/packages/core/test/util/global_spec.ts b/packages/core/test/util/global_spec.ts
index 0ea8522378..e7f91e055c 100644
--- a/packages/core/test/util/global_spec.ts
+++ b/packages/core/test/util/global_spec.ts
@@ -8,9 +8,6 @@
 
 import {global} from '../../src/util/global';
 
-// Not yet available in TypeScript: https://github.com/Microsoft/TypeScript/pull/29332
-declare var globalThis: any /** TODO #9100 */;
-
 {
   describe('global', () => {
     it('should be global this value', () => {