diff --git a/app/controllers/api/application_controller.rb b/app/controllers/api/application_controller.rb
index 2961396..6cb0377 100644
--- a/app/controllers/api/application_controller.rb
+++ b/app/controllers/api/application_controller.rb
@@ -3,7 +3,7 @@ module API
     rescue_from ActiveRecord::RecordNotFound, with: :not_found
 
     skip_before_filter :verify_authenticity_token
-    skip_before_filter :authenticate!, only: :cor_preflight
+    skip_before_filter :authenticate!, only: %i[cor_preflight ping]
 
     before_filter :cor_filter
     before_filter :json_filter!, except: :cor_preflight
diff --git a/spec/integration/api/application_spec.rb b/spec/integration/api/application_spec.rb
index 7f69dad..283a3ad 100644
--- a/spec/integration/api/application_spec.rb
+++ b/spec/integration/api/application_spec.rb
@@ -1,8 +1,6 @@
 describe 'API application' do
   include AcceptanceHelpers
 
-  before { api_sign_in }
-
   describe 'ping endpoint' do
     before { get api_ping_path, format: :json }
 
@@ -12,6 +10,8 @@ describe 'API application' do
   end
 
   describe 'formats handling' do
+    before { api_sign_in }
+
     it 'responds with a 406 when request format is not JSON' do
       get api_ping_path, format: :xml
       expect(response.status).to be 406
@@ -21,6 +21,8 @@ describe 'API application' do
   end
 
   describe 'not found' do
+    before { api_sign_in }
+
     it 'responds with a 404 when route does not exist' do
       get '/api/not_found', format: :json
       expect(response.status).to be 404