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 c21be1935ab..86cd4915005 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
@@ -1546,6 +1546,32 @@ suite('Notebook API tests', function () {
 		await saveAllFilesAndCloseAll(resource);
 	});
 
+	test('Numeric metadata should get updated correctly', async function () {
+		const resource = await createRandomFile('', undefined, '.vsctestnb');
+		const document = await vscode.notebook.openNotebookDocument(resource);
+
+		const edit = new vscode.WorkspaceEdit();
+		const runStartTime = Date.now();
+		const lastRunDuration = Date.now() + 1000;
+		const runState = vscode.NotebookCellRunState.Running;
+		const executionOrder = 1234;
+		const metadata = document.cells[0].metadata.with({
+			...document.cells[0].metadata,
+			runStartTime,
+			runState,
+			lastRunDuration,
+			executionOrder
+		});
+		edit.replaceNotebookCellMetadata(document.uri, 0, metadata);
+		await vscode.workspace.applyEdit(edit);
+
+		assert.strictEqual(document.cells[0].metadata.runStartTime, runStartTime);
+		assert.strictEqual(document.cells[0].metadata.lastRunDuration, lastRunDuration);
+		assert.strictEqual(document.cells[0].metadata.executionOrder, executionOrder);
+		assert.strictEqual(document.cells[0].metadata.runState, vscode.NotebookCellRunState.Running);
+		await saveAllFilesAndCloseAll(resource);
+	});
+
 	// });
 
 	// suite('webview', () => {
diff --git a/src/vs/workbench/api/common/extHostTypeConverters.ts b/src/vs/workbench/api/common/extHostTypeConverters.ts
index 1c0301a8ac2..bc0db6649e5 100644
--- a/src/vs/workbench/api/common/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/common/extHostTypeConverters.ts
@@ -1419,7 +1419,7 @@ export namespace NotebookCellRange {
 export namespace NotebookCellMetadata {
 
 	export function to(data: notebooks.NotebookCellMetadata): types.NotebookCellMetadata {
-		return new types.NotebookCellMetadata(data.editable, data.breakpointMargin, data.runnable, data.hasExecutionOrder, data.executionOrder, data.runStartTime, data.runStartTime, data.statusMessage, data.lastRunDuration, data.inputCollapsed, data.outputCollapsed, data.custom);
+		return new types.NotebookCellMetadata(data.editable, data.breakpointMargin, data.runnable, data.hasExecutionOrder, data.executionOrder, data.runState, data.runStartTime, data.statusMessage, data.lastRunDuration, data.inputCollapsed, data.outputCollapsed, data.custom);
 	}
 }