diff --git a/Tusker/Screens/Main/MainSplitViewController.swift b/Tusker/Screens/Main/MainSplitViewController.swift
index 54f95580..2d6bd512 100644
--- a/Tusker/Screens/Main/MainSplitViewController.swift
+++ b/Tusker/Screens/Main/MainSplitViewController.swift
@@ -101,7 +101,11 @@ class MainSplitViewController: UISplitViewController {
         }
     }
     
-    @objc func handleSidebarItemCommand(_ command: UICommand) {
+    @objc func handleSidebarItemCommand(_ sender: AnyObject) {
+        // workaround for crash when sender is not a UICommand, see #253 and FB11804009
+        guard let command = sender as? UICommand else {
+            return
+        }
         let item: MainSidebarViewController.Item
         if let index = command.propertyList as? Int {
             item = .tab(MainTabBarViewController.Tab(rawValue: index)!)