diff --git a/lib/wizard/builder.rb b/lib/wizard/builder.rb
index 17a365031bc..dddf08f7a73 100644
--- a/lib/wizard/builder.rb
+++ b/lib/wizard/builder.rb
@@ -82,7 +82,6 @@ class Wizard
         username = Discourse.system_user.username if username.blank?
         contact = step.add_field(id: 'site_contact', type: 'dropdown', value: username)
 
-        reserved_usernames = SiteSetting.defaults[:reserved_usernames].split('|')
         User.human_users.where(admin: true).pluck(:username).each do |c|
           contact.add_choice(c) unless reserved_usernames.include?(c.downcase)
         end
@@ -214,7 +213,7 @@ class Wizard
 
       @wizard.append_step('invites') do |step|
 
-        staff_count = User.staff.human_users.count
+        staff_count = User.staff.human_users.where('username_lower not in (?)', reserved_usernames).count
         step.add_field(id: 'staff_count', type: 'component', value: staff_count)
 
         step.add_field(id: 'invite_list', type: 'component')
@@ -253,5 +252,9 @@ class Wizard
 
       raw.gsub!(old_value, new_value)
     end
+
+    def reserved_usernames
+      @reserved_usernames ||= SiteSetting.defaults[:reserved_usernames].split('|')
+    end
   end
 end