diff --git a/gramps/plugins/view/citationtreeview.py b/gramps/plugins/view/citationtreeview.py
index 523b37a74..5eda230d2 100644
--- a/gramps/plugins/view/citationtreeview.py
+++ b/gramps/plugins/view/citationtreeview.py
@@ -356,6 +356,7 @@ class CitationTreeView(ListView):
+