diff --git a/resources/default_tweaks.py b/resources/default_tweaks.py
index bff4ce3e72..d4eb5141cf 100644
--- a/resources/default_tweaks.py
+++ b/resources/default_tweaks.py
@@ -219,6 +219,10 @@ save_template_title_series_sorting = 'library_order'
 per_language_title_sort_articles = {
         # English
         'eng'  : (r'A\s+', r'The\s+', r'An\s+'),
+
+        # Esperanto
+        'epo': (r'La\s+', r"L'", 'L\xb4'),
+
         # Spanish
         'spa'  : (r'El\s+', r'La\s+', r'Lo\s+', r'Los\s+', r'Las\s+', r'Un\s+',
                   r'Una\s+', r'Unos\s+', r'Unas\s+'),