diff --git a/src/sql/base/browser/ui/selectBox/selectBox.ts b/src/sql/base/browser/ui/selectBox/selectBox.ts
index a22128690b..8562fa91fd 100644
--- a/src/sql/base/browser/ui/selectBox/selectBox.ts
+++ b/src/sql/base/browser/ui/selectBox/selectBox.ts
@@ -38,6 +38,8 @@ export interface ISelectBoxStyles extends vsISelectBoxStyles {
 	inputValidationErrorForeground?: Color;
 }
 
+export class SelectBoxEmptyError extends Error { }
+
 export class SelectBox extends vsSelectBox {
 	private _optionsDictionary: Map<string, number>;
 	private _dialogOptions: SelectOptionItemSQL[];
@@ -66,12 +68,13 @@ export class SelectBox extends vsSelectBox {
 
 	constructor(options: SelectOptionItemSQL[] | string[], selectedOption: string, contextViewProvider: IContextViewProvider, container?: HTMLElement, selectBoxOptions?: ISelectBoxOptions) {
 		let optionItems: SelectOptionItemSQL[];
-		if (Array.isArray<string>(options)) {
-			optionItems = (options as string[]).map(o => {
+
+		if (Array.isArray<string>(options) && typeof (options[0]) === 'string') {
+			optionItems = (options).map(o => {
 				return { text: o, value: o } as SelectOptionItemSQL;
 			});
 		} else {
-			optionItems = options;
+			optionItems = options as SelectOptionItemSQL[];
 		}
 
 		super(optionItems, 0, contextViewProvider, undefined, selectBoxOptions);