diff --git a/src/calibre/gui2/tag_view.py b/src/calibre/gui2/tag_view.py
index 6a759f1bbb..4a6545053e 100644
--- a/src/calibre/gui2/tag_view.py
+++ b/src/calibre/gui2/tag_view.py
@@ -176,7 +176,11 @@ class TagsModel(QAbstractItemModel):
         else:
             parent_item = parent.internalPointer()
 
-        child_item = parent_item.children[row]
+        try:
+            child_item = parent_item.children[row]
+        except IndexError:
+            return QModelIndex()
+
         ans = self.createIndex(row, column, child_item)
         return ans