diff --git a/chrome/content/zotero/elements/menulistItemTypes.js b/chrome/content/zotero/elements/menulistItemTypes.js
index 2508a6a834..65ce7e094d 100644
--- a/chrome/content/zotero/elements/menulistItemTypes.js
+++ b/chrome/content/zotero/elements/menulistItemTypes.js
@@ -33,10 +33,6 @@
 	}
 	
 	class ItemTypeMenuList extends customElements.get("menulist") {
-		constructor() {
-			super();
-		}
-		
 		connectedCallback() {
 			super.connectedCallback();
 			
@@ -65,7 +61,8 @@
 			for (let i = 0; i < itemTypes.length; i++) {
 				let name = itemTypes[i].name;
 				if (name != 'attachment' && name != 'note' && name != 'annotation') {
-					this.appendItem(itemTypes[i].localized, itemTypes[i].id);
+					let menuitem = this.appendItem(itemTypes[i].localized, itemTypes[i].id);
+					menuitem.setAttribute('type', 'radio');
 				}
 			}