diff --git a/gramps/plugins/gramplet/citations.py b/gramps/plugins/gramplet/citations.py
index 67c235e3a..a0fafd801 100644
--- a/gramps/plugins/gramplet/citations.py
+++ b/gramps/plugins/gramplet/citations.py
@@ -245,7 +245,7 @@ class Citations(Gramplet, DbGUIElement):
         model, iter_ = treeview.get_selection().get_selected()
         if iter_:
             handle = model.get_value(iter_, 0)
-            if len(model.get_path(iter_)) == 1:
+            if len(str(model.get_path(iter_))) == 1:
                 self.edit_source(handle)
             else:
                 self.edit_citation(handle)