diff --git a/framework/core/js/lib/components/dropdown-split.js b/framework/core/js/lib/components/dropdown-split.js
index 77544c464..882d057ce 100644
--- a/framework/core/js/lib/components/dropdown-split.js
+++ b/framework/core/js/lib/components/dropdown-split.js
@@ -10,7 +10,11 @@ import ActionButton from 'flarum/components/action-button';
  */
 export default class DropdownSplit extends Component {
   view() {
-    var firstItem = this.props.items[0];
+    var firstItem = this.props.items;
+    while (firstItem instanceof Array) {
+      firstItem = firstItem[0];
+    }
+
     var items = listItems(this.props.items);
 
     var buttonProps = {};
diff --git a/framework/core/js/lib/utils/item-list.js b/framework/core/js/lib/utils/item-list.js
index f119adf0f..f5bc6e3f5 100644
--- a/framework/core/js/lib/utils/item-list.js
+++ b/framework/core/js/lib/utils/item-list.js
@@ -64,15 +64,6 @@ export default class ItemList {
 
     array = array.map(item => item.content);
 
-    //recursively flatten array
-    for (var i = 0, len = array.length; i < len; i++) {
-      if (array[i] instanceof Array) {
-        array = array.concat.apply([], array);
-        i-- //check current index again and flatten until there are no more nested arrays at that index
-        len = array.length;
-      }
-    }
-
     return array;
   }
 }