diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index acdf3168f16..6ccd85ad078 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -1513,7 +1513,7 @@ declare module 'vscode' {
 
 	export type NotebookSelector = NotebookFilter | string | ReadonlyArray<NotebookFilter | string>;
 
-	export interface NotebookExecutionHandler {
+	export interface NotebookExecuteHandler {
 		/**
 		 * @param cells The notebook cells to execute
 		 * @param controller The controller that the handler is attached to
@@ -1583,7 +1583,7 @@ declare module 'vscode' {
 		 * The execute handler is invoked when the run gestures in the UI are selected, e.g Run Cell, Run All,
 		 * Run Selection etc.
 		 */
-		executeHandler: NotebookExecutionHandler;
+		executeHandler: NotebookExecuteHandler;
 
 		/**
 		 * The interrupt handler is invoked the interrupt all execution. This is contrary to cancellation (available via
@@ -1652,7 +1652,7 @@ declare module 'vscode' {
 		 * @param handler
 		 * @param preloads
 		 */
-		export function createNotebookController(id: string, selector: NotebookSelector, label: string, handler?: NotebookExecutionHandler, preloads?: NotebookKernelPreload[]): NotebookController;
+		export function createNotebookController(id: string, selector: NotebookSelector, label: string, handler?: NotebookExecuteHandler, preloads?: NotebookKernelPreload[]): NotebookController;
 	}
 
 	//#endregion
diff --git a/src/vs/workbench/api/common/extHostNotebookKernels.ts b/src/vs/workbench/api/common/extHostNotebookKernels.ts
index aed6b40385e..9eaa4c563e4 100644
--- a/src/vs/workbench/api/common/extHostNotebookKernels.ts
+++ b/src/vs/workbench/api/common/extHostNotebookKernels.ts
@@ -36,7 +36,7 @@ export class ExtHostNotebookKernels implements ExtHostNotebookKernelsShape {
 		this._proxy = mainContext.getProxy(MainContext.MainThreadNotebookKernels);
 	}
 
-	createNotebookController(extension: IExtensionDescription, id: string, selector: vscode.NotebookSelector, label: string, handler?: vscode.NotebookExecutionHandler, preloads?: vscode.NotebookKernelPreload[]): vscode.NotebookController {
+	createNotebookController(extension: IExtensionDescription, id: string, selector: vscode.NotebookSelector, label: string, handler?: vscode.NotebookExecuteHandler, preloads?: vscode.NotebookKernelPreload[]): vscode.NotebookController {
 
 		for (let data of this._kernelData.values()) {
 			if (data.controller.id === id) {
@@ -65,7 +65,7 @@ export class ExtHostNotebookKernels implements ExtHostNotebookKernelsShape {
 		};
 
 		//
-		let _executeHandler: vscode.NotebookExecutionHandler = handler ?? _defaultExecutHandler;
+		let _executeHandler: vscode.NotebookExecuteHandler = handler ?? _defaultExecutHandler;
 		let _interruptHandler: vscode.NotebookInterruptHandler | undefined;
 
 		// todo@jrieken the selector needs to be massaged