diff --git a/app/controllers/administrateurs/attestation_template_v2s_controller.rb b/app/controllers/administrateurs/attestation_template_v2s_controller.rb
index 808763bc9..f5ace97c7 100644
--- a/app/controllers/administrateurs/attestation_template_v2s_controller.rb
+++ b/app/controllers/administrateurs/attestation_template_v2s_controller.rb
@@ -34,9 +34,13 @@ module Administrateurs
             }
           }.to_json
 
-          result = Typhoeus.post(WEASYPRINT_URL, headers:, body:)
+          response = Typhoeus.post(WEASYPRINT_URL, headers:, body:)
 
-          send_data(result.body, filename: 'attestation.pdf', type: 'application/pdf', disposition: 'inline')
+          if response.success?
+            send_data(response.body, filename: 'attestation.pdf', type: 'application/pdf', disposition: 'inline')
+          else
+            raise StandardError.new("PDF Generation failed: #{response.return_code} #{response.status_message}")
+          end
         end
       end
     end
diff --git a/spec/system/administrateurs/procedure_attestation_template_spec.rb b/spec/system/administrateurs/procedure_attestation_template_spec.rb
index 0877d9b0f..bf7dbf1ff 100644
--- a/spec/system/administrateurs/procedure_attestation_template_spec.rb
+++ b/spec/system/administrateurs/procedure_attestation_template_spec.rb
@@ -65,7 +65,12 @@ describe 'As an administrateur, I want to manage the procedure’s attestation',
   end
 
   context 'Update attestation v2' do
-    before { Flipper.enable(:attestation_v2) }
+    before do
+      Flipper.enable(:attestation_v2)
+
+      response = Typhoeus::Response.new(code: 200, body: 'Hello world')
+      Typhoeus.stub(WEASYPRINT_URL).and_return(response)
+    end
 
     scenario do
       visit admin_procedure_path(procedure)