diff --git a/gnuviechadmin/osusers/admin.py b/gnuviechadmin/osusers/admin.py
index 3a23b82..fb21576 100644
--- a/gnuviechadmin/osusers/admin.py
+++ b/gnuviechadmin/osusers/admin.py
@@ -84,7 +84,10 @@ class UserCreationForm(forms.ModelForm):
         return user
 
     def save_m2m(self):
-        pass
+        """
+        No additional groups are created when this form is saved, so this
+        method just does nothing.
+        """
 
 
 class UserAdmin(admin.ModelAdmin):