diff --git a/src/vs/base/common/arrays.ts b/src/vs/base/common/arrays.ts
index 4a2823c3671..8029a115b04 100644
--- a/src/vs/base/common/arrays.ts
+++ b/src/vs/base/common/arrays.ts
@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { CancellationToken } from 'vs/base/common/cancellation';
-import { canceled } from 'vs/base/common/errors';
+import { CancellationError } from 'vs/base/common/errors';
 import { ISplice } from 'vs/base/common/sequence';
 
 /**
@@ -257,7 +257,7 @@ export function topAsync<T>(array: T[], compare: (a: T, b: T) => number, n: numb
 					await new Promise(resolve => setTimeout(resolve)); // any other delay function would starve I/O
 				}
 				if (token && token.isCancellationRequested) {
-					throw canceled();
+					throw new CancellationError();
 				}
 				topStep(array, compare, result, i, m);
 			}
diff --git a/src/vs/editor/contrib/suggest/browser/suggest.ts b/src/vs/editor/contrib/suggest/browser/suggest.ts
index 8cd3d553f6a..0632f522c3f 100644
--- a/src/vs/editor/contrib/suggest/browser/suggest.ts
+++ b/src/vs/editor/contrib/suggest/browser/suggest.ts
@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { CancellationToken } from 'vs/base/common/cancellation';
-import { canceled, isCancellationError, onUnexpectedExternalError } from 'vs/base/common/errors';
+import { CancellationError, isCancellationError, onUnexpectedExternalError } from 'vs/base/common/errors';
 import { FuzzyScore } from 'vs/base/common/filters';
 import { DisposableStore, IDisposable, isDisposable } from 'vs/base/common/lifecycle';
 import { StopWatch } from 'vs/base/common/stopwatch';
@@ -295,7 +295,7 @@ export async function provideSuggestionItems(
 
 	if (token.isCancellationRequested) {
 		disposables.dispose();
-		return Promise.reject<any>(canceled());
+		return Promise.reject<any>(new CancellationError());
 	}
 
 	return new CompletionItemModel(
diff --git a/src/vs/workbench/api/test/browser/extHostTypes.test.ts b/src/vs/workbench/api/test/browser/extHostTypes.test.ts
index bcb92a1d701..4fa83071049 100644
--- a/src/vs/workbench/api/test/browser/extHostTypes.test.ts
+++ b/src/vs/workbench/api/test/browser/extHostTypes.test.ts
@@ -10,6 +10,7 @@ import { isWindows } from 'vs/base/common/platform';
 import { assertType } from 'vs/base/common/types';
 import { Mimes } from 'vs/base/common/mime';
 import { MarshalledId } from 'vs/base/common/marshallingIds';
+import { CancellationError } from 'vs/base/common/errors';
 
 function assertToJSON(a: any, expected: any) {
 	const raw = JSON.stringify(a);
@@ -565,6 +566,14 @@ suite('ExtHostTypes', function () {
 		assert.ok(error instanceof types.FileSystemError);
 	});
 
+	test('CancellationError', function () {
+		// The CancellationError-type is used internally and exported as API. Make sure that at
+		// its name and message are `Canceled`
+		const err = new CancellationError();
+		assert.strictEqual(err.name, 'Canceled');
+		assert.strictEqual(err.message, 'Canceled');
+	});
+
 	test('CodeActionKind contains', () => {
 		assert.ok(types.CodeActionKind.RefactorExtract.contains(types.CodeActionKind.RefactorExtract));
 		assert.ok(types.CodeActionKind.RefactorExtract.contains(types.CodeActionKind.RefactorExtract.append('other')));
diff --git a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
index 41ce758f5cf..9e3e00d91ee 100644
--- a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
+++ b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
@@ -27,7 +27,7 @@ import { assertType } from 'vs/base/common/types';
 import { IUntitledTextEditorService } from 'vs/workbench/services/untitled/common/untitledTextEditorService';
 import { StoredFileWorkingCopyState, IStoredFileWorkingCopy, IStoredFileWorkingCopyModel, IStoredFileWorkingCopyModelContentChangedEvent, IStoredFileWorkingCopyModelFactory, IStoredFileWorkingCopySaveEvent } from 'vs/workbench/services/workingCopy/common/storedFileWorkingCopy';
 import { Disposable, DisposableStore } from 'vs/base/common/lifecycle';
-import { canceled } from 'vs/base/common/errors';
+import { CancellationError } from 'vs/base/common/errors';
 import { NotebookEditorInput } from 'vs/workbench/contrib/notebook/common/notebookEditorInput';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { filter } from 'vs/base/common/objects';
@@ -631,7 +631,7 @@ export class NotebookFileWorkingCopyModel extends Disposable implements IStoredF
 
 		const bytes = await this._notebookSerializer.notebookToData(data);
 		if (token.isCancellationRequested) {
-			throw canceled();
+			throw new CancellationError();
 		}
 		return bufferToStream(bytes);
 	}
@@ -642,7 +642,7 @@ export class NotebookFileWorkingCopyModel extends Disposable implements IStoredF
 		const data = await this._notebookSerializer.dataToNotebook(bytes);
 
 		if (token.isCancellationRequested) {
-			throw canceled();
+			throw new CancellationError();
 		}
 		this._notebookModel.reset(data.cells, data.metadata, this._notebookSerializer.options);
 	}
@@ -674,7 +674,7 @@ export class NotebookFileWorkingCopyModelFactory implements IStoredFileWorkingCo
 		const data = await info.serializer.dataToNotebook(bytes);
 
 		if (token.isCancellationRequested) {
-			throw canceled();
+			throw new CancellationError();
 		}
 
 		const notebookModel = this._notebookService.createNotebookTextModel(info.viewType, resource, data, info.serializer.options);