diff --git a/.gitignore b/.gitignore
index ac7b235..fbbf3b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,9 @@ coverage
 database.yml
 database.yml~
 kalibro.yml
-kalibro_cucumber_helpers.yml
\ No newline at end of file
+kalibro_cucumber_helpers.yml
+KalibroService.tar.gz
+KalibroService/
+analizo_1.16.0_all.deb
+db_bootstrap.sql
+install.sh
diff --git a/app/models/reading.rb b/app/models/reading.rb
index a98df6e..d9fc111 100644
--- a/app/models/reading.rb
+++ b/app/models/reading.rb
@@ -4,7 +4,7 @@ class Reading < KalibroGatekeeperClient::Entities::Reading
   attr_accessor :label, :grade, :color
 
   validates :label, presence: true, kalibro_uniqueness: true
-  validates :grade, presence: true #TODO: Validates numeracy
+  validates :grade, presence: true, numericality: true
   validates :color, presence: true
 
 end
--
libgit2 0.21.2