diff --git a/NetNewsWire/MainWindow/Sidebar/SidebarViewController.swift b/NetNewsWire/MainWindow/Sidebar/SidebarViewController.swift
index ca4fd82ee..35cb0b8ac 100644
--- a/NetNewsWire/MainWindow/Sidebar/SidebarViewController.swift
+++ b/NetNewsWire/MainWindow/Sidebar/SidebarViewController.swift
@@ -45,7 +45,7 @@ import RSCore
 		outlineView.dataSource = dataSource
 		outlineView.setDraggingSourceOperationMask(.move, forLocal: true)
 		outlineView.setDraggingSourceOperationMask(.copy, forLocal: false)
-		outlineView.registerForDraggedTypes([FeedPasteboardWriter.feedUTIInternalType, FeedPasteboardWriter.feedUTIType])
+		outlineView.registerForDraggedTypes([FeedPasteboardWriter.feedUTIInternalType, FeedPasteboardWriter.feedUTIType, .URL, .string])
 
 		NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
 		NotificationCenter.default.addObserver(self, selector: #selector(containerChildrenDidChange(_:)), name: .ChildrenDidChange, object: nil)