diff --git a/app/models/sheet.rb b/app/models/sheet.rb
index b147e54..5fc5ca8 100644
--- a/app/models/sheet.rb
+++ b/app/models/sheet.rb
@@ -2,10 +2,10 @@
 
 class Sheet < ActiveRecord::Base
   has_many :people, :dependent => :destroy
-  has_many :sheet_years, :order => "year DESC", :dependent => :destroy
-  has_many :donates, :order => "paid_at DESC", :dependent => :destroy
-  has_one :last_year_m, :order => "year DESC", :class_name => "SheetYear"
-  has_one :first_year_m, :order => "year", :class_name => "SheetYear"
+  has_many :sheet_years, -> {order  "year DESC"}, :dependent => :destroy
+  has_many :donates, -> {order  "paid_at DESC"}, :dependent => :destroy
+  has_one :last_year_m, -> {order  "year DESC"}, :class_name => "SheetYear"
+  has_one :first_year_m, -> {order  "year"}, :class_name => "SheetYear"
   
   
   belongs_to :person, :class_name => "Person", :foreign_key => :first_people