diff --git a/src/vs/workbench/api/node/extHostTypeConverters.ts b/src/vs/workbench/api/node/extHostTypeConverters.ts
index 96b275af75f..bf942604411 100644
--- a/src/vs/workbench/api/node/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/node/extHostTypeConverters.ts
@@ -512,6 +512,7 @@ export namespace Suggest {
 		result.documentation = htmlContent.isMarkdownString(suggestion.documentation) ? MarkdownString.to(suggestion.documentation) : suggestion.documentation;
 		result.sortText = suggestion.sortText;
 		result.filterText = suggestion.filterText;
+		result.preselect = suggestion.preselect;
 
 		// 'overwrite[Before|After]'-logic
 		let overwriteBefore = (typeof suggestion.overwriteBefore === 'number') ? suggestion.overwriteBefore : 0;
diff --git a/src/vs/workbench/test/electron-browser/api/extHostApiCommands.test.ts b/src/vs/workbench/test/electron-browser/api/extHostApiCommands.test.ts
index ba37b81ff7d..80a57fac79c 100644
--- a/src/vs/workbench/test/electron-browser/api/extHostApiCommands.test.ts
+++ b/src/vs/workbench/test/electron-browser/api/extHostApiCommands.test.ts
@@ -450,6 +450,38 @@ suite('ExtHostLanguageFeatureCommands', function () {
 
 	});
 
+	test('"vscode.executeCompletionItemProvider" doesnot return a preselect field #53749', async function () {
+		disposables.push(extHost.registerCompletionItemProvider(defaultSelector, <vscode.CompletionItemProvider>{
+			provideCompletionItems(): any {
+				let a = new types.CompletionItem('item1');
+				a.preselect = true;
+				let b = new types.CompletionItem('item2');
+				let c = new types.CompletionItem('item3');
+				c.preselect = true;
+				let d = new types.CompletionItem('item4');
+				return new types.CompletionList([a, b, c, d], false);
+			}
+		}, []));
+
+		await rpcProtocol.sync();
+
+		let list = await commands.executeCommand<vscode.CompletionList>(
+			'vscode.executeCompletionItemProvider',
+			model.uri,
+			new types.Position(0, 4),
+			undefined
+		);
+
+		assert.ok(list instanceof types.CompletionList);
+		assert.equal(list.items.length, 4);
+
+		let [a, b, c, d] = list.items;
+		assert.equal(a.preselect, true);
+		assert.equal(b.preselect, undefined);
+		assert.equal(c.preselect, true);
+		assert.equal(d.preselect, undefined);
+	});
+
 	// --- quickfix
 
 	test('QuickFix, back and forth', function () {