diff --git a/app/models/account.rb b/app/models/account.rb
index 50229f99b1a320a7b067de32fb2f7b566656f2fc..76ee73826784666a24b17532dd449d967d6a5b99 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -1,2 +1,3 @@
 class Account < ActiveRecord::Base
+  has_many :saldos
 end
diff --git a/app/models/saldo.rb b/app/models/saldo.rb
index 3f4fa2d04ac39eec04631370a06a68d996bdee03..038b430cf153d8916557f7bc9dd0262bb8930998 100644
--- a/app/models/saldo.rb
+++ b/app/models/saldo.rb
@@ -1,2 +1,3 @@
 class Saldo < ActiveRecord::Base
+  belongs_to :account
 end