diff --git a/src/tsconfig.strictNullChecks.json b/src/tsconfig.strictNullChecks.json
index 04625436fc9468a66792026ddfe8874032599bbc..d901a39cd84c774b47e2117d54198fe5f6eed4ab 100644
--- a/src/tsconfig.strictNullChecks.json
+++ b/src/tsconfig.strictNullChecks.json
@@ -324,7 +324,6 @@
 		"./vs/platform/notification/common/notification.ts",
 		"./vs/platform/notification/test/common/testNotificationService.ts",
 		"./vs/platform/opener/common/opener.ts",
-		"./vs/platform/output/node/outputAppender.ts",
 		"./vs/platform/progress/common/progress.ts",
 		"./vs/platform/quickOpen/common/quickOpen.ts",
 		"./vs/platform/quickinput/common/quickInput.ts",
@@ -573,6 +572,7 @@
 		"./vs/workbench/contrib/output/common/output.ts",
 		"./vs/workbench/contrib/output/common/outputLinkComputer.ts",
 		"./vs/workbench/contrib/output/common/outputLinkProvider.ts",
+		"./vs/workbench/contrib/output/node/outputAppender.ts",
 		"./vs/workbench/contrib/performance/electron-browser/startupTimings.ts",
 		"./vs/workbench/contrib/preferences/browser/settingsWidgets.ts",
 		"./vs/workbench/contrib/preferences/common/smartSnippetInserter.ts",
diff --git a/src/vs/workbench/api/node/extHostOutputService.ts b/src/vs/workbench/api/node/extHostOutputService.ts
index a72e053e94dab070bfccb028ef6f3a947d9b615b..201ff12c9f21f3131f8679afbef67883884980f2 100644
--- a/src/vs/workbench/api/node/extHostOutputService.ts
+++ b/src/vs/workbench/api/node/extHostOutputService.ts
@@ -7,7 +7,7 @@ import { MainContext, MainThreadOutputServiceShape, IMainContext, ExtHostOutputS
 import * as vscode from 'vscode';
 import { URI } from 'vs/base/common/uri';
 import { posix } from 'path';
-import { OutputAppender } from 'vs/platform/output/node/outputAppender';
+import { OutputAppender } from 'vs/workbench/contrib/output/node/outputAppender';
 import { toLocalISOString } from 'vs/base/common/date';
 import { Event, Emitter } from 'vs/base/common/event';
 import { Disposable, IDisposable, dispose } from 'vs/base/common/lifecycle';
diff --git a/src/vs/workbench/contrib/output/electron-browser/outputServices.ts b/src/vs/workbench/contrib/output/electron-browser/outputServices.ts
index 6a9a65811a85f78e1362cf7ce4e9303055bfb2f6..b18649d3cf17a901841611f3fa1db8396aad646b 100644
--- a/src/vs/workbench/contrib/output/electron-browser/outputServices.ts
+++ b/src/vs/workbench/contrib/output/electron-browser/outputServices.ts
@@ -37,7 +37,7 @@ import { binarySearch } from 'vs/base/common/arrays';
 import { ILifecycleService } from 'vs/platform/lifecycle/common/lifecycle';
 import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 import { CancellationToken } from 'vs/base/common/cancellation';
-import { OutputAppender } from 'vs/platform/output/node/outputAppender';
+import { OutputAppender } from 'vs/workbench/contrib/output/node/outputAppender';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { isNumber } from 'vs/base/common/types';
 
diff --git a/src/vs/platform/output/node/outputAppender.ts b/src/vs/workbench/contrib/output/node/outputAppender.ts
similarity index 100%
rename from src/vs/platform/output/node/outputAppender.ts
rename to src/vs/workbench/contrib/output/node/outputAppender.ts