diff --git a/gramps/gen/utils/grampslocale.py b/gramps/gen/utils/grampslocale.py
index f25030e..59c1c90 100644
--- a/gramps/gen/utils/grampslocale.py
+++ b/gramps/gen/utils/grampslocale.py
@@ -370,8 +370,12 @@ class GrampsLocale:
                 )
             else:
                 # bug12278, _build_popup_ui() under linux and macOS
-                locale.textdomain(self.localedomain)
-                locale.bindtextdomain(self.localedomain, self.localedir)
+                if hasattr(locale, 'textdomain'):
+                    locale.textdomain(self.localedomain)
+                    locale.bindtextdomain(self.localedomain, self.localedir)
+                else:
+                    gettext.textdomain(self.localedomain)
+                    gettext.bindtextdomain(self.localedomain, self.localedir)
 
         self.rtl_locale = False
         if self.language[0] in _RTL_LOCALES: