diff --git a/src/calibre/gui2/dialogs/tag_list_editor.py b/src/calibre/gui2/dialogs/tag_list_editor.py
index f3236b3eb4..3193c09d76 100644
--- a/src/calibre/gui2/dialogs/tag_list_editor.py
+++ b/src/calibre/gui2/dialogs/tag_list_editor.py
@@ -192,6 +192,7 @@ class TagListEditor(QDialog, Ui_TagListEditor):
         self.name_order = 0
         self.count_order = 1
         self.was_order = 1
+        self.link_order = 0
 
         self.edit_delegate = EditColumnDelegate(self.table)
         self.edit_delegate.editing_finished.connect(self.stop_editing)
@@ -663,7 +664,7 @@ class TagListEditor(QDialog, Ui_TagListEditor):
             self.table.scrollToItem(self.table.item(row, 0))
 
     def do_sort(self, section):
-        (self.do_sort_by_name, self.do_sort_by_count, self.do_sort_by_was)[section]()
+        (self.do_sort_by_name, self.do_sort_by_count, self.do_sort_by_was, self.do_sort_by_was_link)[section]()
 
     def do_sort_by_name(self):
         self.name_order = 1 - self.name_order
@@ -680,6 +681,11 @@ class TagListEditor(QDialog, Ui_TagListEditor):
         self.last_sorted_by = 'count'
         self.table.sortByColumn(2, Qt.SortOrder(self.was_order))
 
+    def do_sort_by_link(self):
+        self.link_order = 1 - self.link_order
+        self.last_sorted_by = 'link'
+        self.table.sortByColumn(3, Qt.SortOrder(self.link_order))
+
     def accepted(self):
         self.links = {self.table.item(r, 0).text():self.table.item(r, 3).text() for r in range(self.table.rowCount())}
         self.save_geometry()