--- a/src/pyams_content/shared/view/theme.py	Wed Nov 25 13:04:28 2020 +0100
+++ b/src/pyams_content/shared/view/theme.py	Tue Dec 01 09:08:53 2020 +0100
@@ -135,7 +135,7 @@
             themes |= set(self.themes)
         if self.include_subthemes:
             for theme in themes.copy():
-                themes |= set(theme.gel_all_childs())
+                themes |= set(theme.get_all_childs())
         return themes
 
     def get_themes_index(self, context):