diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
index 628152e2468..6173d1b81c9 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
@@ -863,7 +863,7 @@ suite('Notebook API tests', function () {
 		let eventCount = 0;
 		let resolve: () => void;
 		const p = new Promise<void>(r => resolve = r);
-		const listener = vscode.notebook.onDidChangeCellExecutionState(e => {
+		const listener = vscode.notebook.onDidChangeNotebookCellExecutionState(e => {
 			if (eventCount === 0) {
 				assert.strictEqual(e.executionState, vscode.NotebookCellExecutionState.Pending, 'should be set to Pending');
 			} else if (eventCount === 1) {
diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 5dcb06d9108..c414cb6f951 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -1633,7 +1633,7 @@ declare module 'vscode' {
 
 		// todo@API what is this used for?
 		// todo@API qualify cell, ...NotebookCell...
-		export const onDidChangeCellExecutionState: Event<NotebookCellExecutionStateChangeEvent>;
+		export const onDidChangeNotebookCellExecutionState: Event<NotebookCellExecutionStateChangeEvent>;
 
 		export function registerNotebookCellStatusBarItemProvider(notebookType: string, provider: NotebookCellStatusBarItemProvider): Disposable;
 	}
diff --git a/src/vs/workbench/api/common/extHost.api.impl.ts b/src/vs/workbench/api/common/extHost.api.impl.ts
index fa98aba6caa..5b68e95fe41 100644
--- a/src/vs/workbench/api/common/extHost.api.impl.ts
+++ b/src/vs/workbench/api/common/extHost.api.impl.ts
@@ -1081,7 +1081,7 @@ export function createApiFactoryAndRegisterActors(accessor: ServicesAccessor): I
 				checkProposedApiEnabled(extension);
 				return extHostNotebook.onDidChangeNotebookCells(listener, thisArgs, disposables);
 			},
-			onDidChangeCellExecutionState(listener, thisArgs?, disposables?) {
+			onDidChangeNotebookCellExecutionState(listener, thisArgs?, disposables?) {
 				checkProposedApiEnabled(extension);
 				return extHostNotebook.onDidChangeNotebookCellExecutionState(listener, thisArgs, disposables);
 			},