diff --git a/gramps/plugins/view/fanchartdescview.py b/gramps/plugins/view/fanchartdescview.py
index b5ef6faa9..77c44c04b 100644
--- a/gramps/plugins/view/fanchartdescview.py
+++ b/gramps/plugins/view/fanchartdescview.py
@@ -272,7 +272,7 @@ class FanChartDescView(fanchartdesc.FanChartDescGrampsGUI, NavigationView):
         grid.set_row_spacing(6)
 
         configdialog.add_spinner(grid, _("Max generations"), 0,
-                'interface.fanview-maxgen', (2, 11),
+                'interface.fanview-maxgen', (2, 16),
                 callback=self.cb_update_maxgen)
         configdialog.add_combo(grid,
                 _('Text Font'),
diff --git a/gramps/plugins/view/fanchartview.py b/gramps/plugins/view/fanchartview.py
index d9029bc82..5671eca45 100644
--- a/gramps/plugins/view/fanchartview.py
+++ b/gramps/plugins/view/fanchartview.py
@@ -270,7 +270,7 @@ class FanChartView(fanchart.FanChartGrampsGUI, NavigationView):
         grid.set_row_spacing(6)
 
         configdialog.add_spinner(grid, _("Max generations"), 0,
-                'interface.fanview-maxgen', (1, 11),
+                'interface.fanview-maxgen', (1, 16),
                 callback=self.cb_update_maxgen)
         configdialog.add_combo(grid,
                 _('Text Font'),