diff --git a/gramps/gen/utils/docgen/odstab.py b/gramps/gen/utils/docgen/odstab.py
index 2064f3757..0f1a45e91 100644
--- a/gramps/gen/utils/docgen/odstab.py
+++ b/gramps/gen/utils/docgen/odstab.py
@@ -341,7 +341,7 @@ class ODSTab(TabbedDoc):
         except:
             raise ReportError(_("Could not create %s") % self.content_xml)
 
-        self.f = open(self.content_xml,"w")
+        self.f = open(self.content_xml,"w", encoding='utf-8')
         self.f.write(
             '<?xml version="1.0" encoding="UTF-8"?>\n' +
             '<office:document-content ' +
diff --git a/gramps/plugins/tool/eventcmp.py b/gramps/plugins/tool/eventcmp.py
index 555f169b6..7af9bf83c 100644
--- a/gramps/plugins/tool/eventcmp.py
+++ b/gramps/plugins/tool/eventcmp.py
@@ -391,6 +391,7 @@ class DisplayChart(ManagedWindow):
 
     def on_write_table(self, obj):
         f = Gtk.FileChooserDialog(_("Select filename"),
+                                  parent=self.window,
                                   action=Gtk.FileChooserAction.SAVE,
                                   buttons=(_('_Cancel'),
                                            Gtk.ResponseType.CANCEL,