diff --git a/docs/source/contents/setup.rst b/docs/source/contents/setup.rst
index dc80b671..1c243fdd 100644
--- a/docs/source/contents/setup.rst
+++ b/docs/source/contents/setup.rst
@@ -365,7 +365,7 @@ Custom User object::
   class User(AbstractUser):
 
     def process_groups(self, groups):
-      // process list of group names in argument 'groups'
+      # process list of group names in argument 'groups'
       pass;
 
 settings.py::