diff --git a/app/models/post_flag.rb b/app/models/post_flag.rb
index ede7c0a30..480c19e78 100644
--- a/app/models/post_flag.rb
+++ b/app/models/post_flag.rb
@@ -77,7 +77,21 @@ class PostFlag < ActiveRecord::Base
     end
   end
 
+  module ApiMethods
+    def hidden_attributes
+      super + [:creator_id]
+    end
+
+    def serializable_hash(options = {})
+      options ||= {}
+      options[:except] ||= []
+      options[:except] += hidden_attributes
+      super(options)
+    end
+  end
+
   extend SearchMethods
+  include ApiMethods
 
   def update_post
     post.update_column(:is_flagged, true) unless post.is_flagged?
diff --git a/app/models/user.rb b/app/models/user.rb
index ed3cfa018..e78c8075d 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -610,7 +610,7 @@ class User < ActiveRecord::Base
 
   module ApiMethods
     def hidden_attributes
-      super + [:password_hash, :bcrypt_password_hash, :email, :email_verification_key, :time_zone, :updated_at, :receive_email_notifications, :last_logged_in_at, :last_forum_read_at, :has_mail, :default_image_size, :comment_threshold, :always_resize_images, :favorite_tags, :blacklisted_tags, :recent_tags, :enable_privacy_mode, :enable_post_navigation, :new_post_navigation_layout, :enable_sequential_post_navigation, :hide_deleted_posts, :per_page, :style_usernames, :enable_auto_complete, :custom_style, :show_deleted_children, :has_saved_searches, :last_ip_addr]
+      super + [:password_hash, :bcrypt_password_hash, :email, :email_verification_key, :time_zone, :updated_at, :receive_email_notifications, :last_logged_in_at, :last_forum_read_at, :has_mail, :default_image_size, :comment_threshold, :always_resize_images, :favorite_tags, :blacklisted_tags, :recent_tags, :enable_privacy_mode, :enable_post_navigation, :new_post_navigation_layout, :enable_sequential_post_navigation, :hide_deleted_posts, :per_page, :style_usernames, :enable_auto_complete, :custom_style, :show_deleted_children, :has_saved_searches, :last_ip_addr, :bit_prefs]
     end
 
     def method_attributes