diff --git a/spec/models/exercice_spec.rb b/spec/models/exercice_spec.rb
index cf64c6cfc..9a906ed7a 100644
--- a/spec/models/exercice_spec.rb
+++ b/spec/models/exercice_spec.rb
@@ -1,4 +1,7 @@
 require 'spec_helper'
 
 describe Exercice do
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:ca) }
+  end
 end