diff --git a/src/vs/workbench/api/browser/mainThreadNotebook.ts b/src/vs/workbench/api/browser/mainThreadNotebook.ts
index 093a95b2afd..11140f3e698 100644
--- a/src/vs/workbench/api/browser/mainThreadNotebook.ts
+++ b/src/vs/workbench/api/browser/mainThreadNotebook.ts
@@ -476,7 +476,7 @@ export class MainThreadNotebooks extends Disposable implements MainThreadNoteboo
 				return this._proxy.$saveNotebookAs(viewType, uri, target, token);
 			},
 			backup: async (uri: URI, token: CancellationToken) => {
-				return this._proxy.$backup(viewType, uri, token);
+				return this._proxy.$backupNotebook(viewType, uri, token);
 			}
 		};
 
diff --git a/src/vs/workbench/api/common/extHost.protocol.ts b/src/vs/workbench/api/common/extHost.protocol.ts
index 8e40528c4fb..a4240de16af 100644
--- a/src/vs/workbench/api/common/extHost.protocol.ts
+++ b/src/vs/workbench/api/common/extHost.protocol.ts
@@ -1799,23 +1799,23 @@ export interface INotebookKernelInfoDto2 {
 }
 
 export interface ExtHostNotebookShape {
-	$openNotebook(viewType: string, uri: UriComponents, backupId?: string): Promise<NotebookDataDto>;
 	$resolveNotebookEditor(viewType: string, uri: UriComponents, editorId: string): Promise<void>;
+	$acceptNotebookActiveKernelChange(event: { uri: UriComponents, providerHandle: number | undefined, kernelFriendlyId: string | undefined }): void;
 	$provideNotebookKernels(handle: number, uri: UriComponents, token: CancellationToken): Promise<INotebookKernelInfoDto2[]>;
 	$resolveNotebookKernel(handle: number, editorId: string, uri: UriComponents, kernelId: string, token: CancellationToken): Promise<void>;
 	$executeNotebookKernelFromProvider(handle: number, uri: UriComponents, kernelId: string, cellHandle: number | undefined): Promise<void>;
 	$cancelNotebookKernelFromProvider(handle: number, uri: UriComponents, kernelId: string, cellHandle: number | undefined): Promise<void>;
+	$onDidReceiveMessage(editorId: string, rendererId: string | undefined, message: unknown): void;
+	$openNotebook(viewType: string, uri: UriComponents, backupId?: string): Promise<NotebookDataDto>;
 	$saveNotebook(viewType: string, uri: UriComponents, token: CancellationToken): Promise<boolean>;
 	$saveNotebookAs(viewType: string, uri: UriComponents, target: UriComponents, token: CancellationToken): Promise<boolean>;
-	$backup(viewType: string, uri: UriComponents, cancellation: CancellationToken): Promise<string>;
-	$acceptNotebookActiveKernelChange(event: { uri: UriComponents, providerHandle: number | undefined, kernelFriendlyId: string | undefined }): void;
-	$onDidReceiveMessage(editorId: string, rendererId: string | undefined, message: unknown): void;
+	$backupNotebook(viewType: string, uri: UriComponents, cancellation: CancellationToken): Promise<string>;
 	$acceptModelChanged(uriComponents: UriComponents, event: NotebookCellsChangedEventDto, isDirty: boolean): void;
 	$acceptDirtyStateChanged(uriComponents: UriComponents, isDirty: boolean): void;
 	$acceptModelSaved(uriComponents: UriComponents): void;
-	$acceptEditorPropertiesChanged(id: string, data: INotebookEditorPropertiesChangeData): void;
 	$acceptDocumentPropertiesChanged(uriComponents: UriComponents, data: INotebookDocumentPropertiesChangeData): void;
 	$acceptDocumentAndEditorsDelta(delta: INotebookDocumentsAndEditorsDelta): void;
+	$acceptEditorPropertiesChanged(id: string, data: INotebookEditorPropertiesChangeData): void;
 }
 
 export interface ExtHostStorageShape {
diff --git a/src/vs/workbench/api/common/extHostNotebook.ts b/src/vs/workbench/api/common/extHostNotebook.ts
index 1f55c70d99c..2f7127097f9 100644
--- a/src/vs/workbench/api/common/extHostNotebook.ts
+++ b/src/vs/workbench/api/common/extHostNotebook.ts
@@ -518,7 +518,7 @@ export class ExtHostNotebookController implements ExtHostNotebookShape {
 
 	private _backupIdPool: number = 0;
 
-	async $backup(viewType: string, uri: UriComponents, cancellation: CancellationToken): Promise<string> {
+	async $backupNotebook(viewType: string, uri: UriComponents, cancellation: CancellationToken): Promise<string> {
 		const document = this._getNotebookDocument(URI.revive(uri));
 		const provider = this._getProviderData(viewType);