diff --git a/src/vs/workbench/contrib/scm/browser/scmActivity.ts b/src/vs/workbench/contrib/scm/browser/scmActivity.ts
index de8d68429cfca679f364c0c8f0b77320213f2b00..aaa9676f892ab19050ae0a838c96269526df1973 100644
--- a/src/vs/workbench/contrib/scm/browser/scmActivity.ts
+++ b/src/vs/workbench/contrib/scm/browser/scmActivity.ts
@@ -5,7 +5,7 @@
 
 import { localize } from 'vs/nls';
 import { basename } from 'vs/base/common/resources';
-import { IDisposable, dispose, Disposable, DisposableStore, combinedDisposable } from 'vs/base/common/lifecycle';
+import { IDisposable, dispose, Disposable, DisposableStore, combinedDisposable, MutableDisposable } from 'vs/base/common/lifecycle';
 import { Event } from 'vs/base/common/event';
 import { VIEWLET_ID, ISCMService, ISCMRepository } from 'vs/workbench/contrib/scm/common/scm';
 import { IActivityService, NumberBadge } from 'vs/workbench/services/activity/common/activity';
@@ -18,7 +18,7 @@ import { ILogService } from 'vs/platform/log/common/log';
 
 export class StatusUpdater implements IWorkbenchContribution {
 
-	private badgeDisposable: IDisposable = Disposable.None;
+	private readonly badgeDisposable = new MutableDisposable<IDisposable>();
 	private disposables: IDisposable[] = [];
 
 	constructor(
@@ -51,7 +51,7 @@ export class StatusUpdater implements IWorkbenchContribution {
 	}
 
 	private render(): void {
-		this.badgeDisposable.dispose();
+		this.badgeDisposable.clear();
 
 		const count = this.scmService.repositories.reduce((r, repository) => {
 			if (typeof repository.provider.count === 'number') {
@@ -66,9 +66,9 @@ export class StatusUpdater implements IWorkbenchContribution {
 
 		if (count > 0) {
 			const badge = new NumberBadge(count, num => localize('scmPendingChangesBadge', '{0} pending changes', num));
-			this.badgeDisposable = this.activityService.showActivity(VIEWLET_ID, badge, 'scm-viewlet-label');
+			this.badgeDisposable.value = this.activityService.showActivity(VIEWLET_ID, badge, 'scm-viewlet-label');
 		} else {
-			this.badgeDisposable = Disposable.None;
+			this.badgeDisposable.clear();
 		}
 	}
 
diff --git a/src/vs/workbench/contrib/update/electron-browser/update.ts b/src/vs/workbench/contrib/update/electron-browser/update.ts
index 7078a1bb2fd7b32bdb3c3d7647b5650eb05eb86b..9ab8d2d859a589baeada9516e2fc6e952d20a5b2 100644
--- a/src/vs/workbench/contrib/update/electron-browser/update.ts
+++ b/src/vs/workbench/contrib/update/electron-browser/update.ts
@@ -6,7 +6,7 @@
 import * as nls from 'vs/nls';
 import severity from 'vs/base/common/severity';
 import { Action } from 'vs/base/common/actions';
-import { IDisposable, Disposable } from 'vs/base/common/lifecycle';
+import { Disposable, MutableDisposable } from 'vs/base/common/lifecycle';
 import pkg from 'vs/platform/product/node/package';
 import product from 'vs/platform/product/node/product';
 import { URI } from 'vs/base/common/uri';
@@ -219,7 +219,7 @@ export class Win3264BitContribution implements IWorkbenchContribution {
 export class UpdateContribution extends Disposable implements IWorkbenchContribution {
 
 	private state: UpdateState;
-	private badgeDisposable: IDisposable = Disposable.None;
+	private readonly badgeDisposable = this._register(new MutableDisposable());
 	private updateStateContextKey: IContextKey<string>;
 
 	constructor(
@@ -298,10 +298,10 @@ export class UpdateContribution extends Disposable implements IWorkbenchContribu
 			clazz = 'progress-badge';
 		}
 
-		this.badgeDisposable.dispose();
+		this.badgeDisposable.clear();
 
 		if (badge) {
-			this.badgeDisposable = this.activityService.showActivity(GLOBAL_ACTIVITY_ID, badge, clazz);
+			this.badgeDisposable.value = this.activityService.showActivity(GLOBAL_ACTIVITY_ID, badge, clazz);
 		}
 
 		this.state = state;