diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index 37b9bf8c0..36d492e0e 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -19,7 +19,7 @@ describe ApplicationController, type: :controller do
     let(:payload) { {} }
 
     before do
-      allow(@controller).to receive(:content_type).and_return('')
+      allow(@controller).to receive(:media_type).and_return('text/plain')
       allow(@controller).to receive(:current_user).and_return(current_user)
       expect(@controller).to receive(:current_instructeur).and_return(current_instructeur)
       expect(@controller).to receive(:current_administrateur).and_return(current_administrateur)
@@ -41,7 +41,7 @@ describe ApplicationController, type: :controller do
           payload.delete(key)
         end
         expect(payload).to eq({
-          sk_rendered_format: nil,
+          sk_rendered_format: :text,
           sk_variant: [],
           user_agent: 'Rails Testing',
           user_roles: 'Guest'
@@ -62,7 +62,7 @@ describe ApplicationController, type: :controller do
           payload.delete(key)
         end
         expect(payload).to eq({
-          sk_rendered_format: nil,
+          sk_rendered_format: :text,
           sk_variant: [],
           user_agent: 'Rails Testing',
           user_id: current_user.id,
@@ -88,7 +88,7 @@ describe ApplicationController, type: :controller do
           payload.delete(key)
         end
         expect(payload).to eq({
-          sk_rendered_format: nil,
+          sk_rendered_format: :text,
           sk_variant: [],
           user_agent: 'Rails Testing',
           user_id: current_user.id,
diff --git a/spec/controllers/manager/application_controller_spec.rb b/spec/controllers/manager/application_controller_spec.rb
index 45d8d995f..bfaf869c8 100644
--- a/spec/controllers/manager/application_controller_spec.rb
+++ b/spec/controllers/manager/application_controller_spec.rb
@@ -4,7 +4,7 @@ describe Manager::ApplicationController, type: :controller do
     let(:payload) { {} }
 
     before do
-      allow(@controller).to receive(:content_type).and_return('')
+      allow(@controller).to receive(:media_type).and_return('text/plain')
       allow(@controller).to receive(:current_user).and_return(current_user)
       @controller.send(:append_info_to_payload, payload)
     end
@@ -14,7 +14,7 @@ describe Manager::ApplicationController, type: :controller do
         payload.delete(key)
       end
       expect(payload).to eq({
-        sk_rendered_format: nil,
+        sk_rendered_format: :text,
         sk_variant: [],
         user_agent: 'Rails Testing',
         user_id: current_user.id,