diff --git a/app/decorators/decidim/attachment_patch.rb b/app/decorators/decidim/attachment_patch.rb
new file mode 100644
index 0000000..8bfb59d
--- /dev/null
+++ b/app/decorators/decidim/attachment_patch.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# Patch pour corriger la méthode file_type dans Decidim::Attachment
+# afin d'afficher le bon type MIME sans les query params AWS S3.
+
+# app/decorators/decidim/attachment_patch.rb
+
+module Decidim
+  module AttachmentPatch
+  end
+end
+
+Rails.logger.info "Patch chargé : Decidim::Attachment#file_type"
+
+Decidim::Attachment.class_eval do
+  def file_type
+    return file.blob.content_type.split("/").last.upcase if file.attached? && file.respond_to?(:blob)
+
+    return content_type.split("/").last.upcase if respond_to?(:content_type) && content_type.present?
+
+    "UNKNOWN"
+  rescue StandardError => e
+    Rails.logger.warn("[Attachment#file_type patch] #{e.class}: #{e.message}")
+    "UNKNOWN"
+  end
+end
diff --git a/config/application.rb b/config/application.rb
index 40d45c3..bf20334 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -20,6 +20,10 @@ class Application < Rails::Application
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 6.1
 
+    # Empêche Zeitwerk d'autoload le dossier decorators
+    config.autoload_paths -= Rails.root.glob("app/decorators")
+    config.eager_load_paths -= Rails.root.glob("app/decorators")
+
     # Configuration for the application, engines, and railties goes here.
     #
     # These settings can be overridden in specific environments using the files
@@ -33,5 +37,14 @@ class Application < Rails::Application
       require "extends/controllers/decidim/devise/omniauth_registrations_controller_extends"
       require "extends/controllers/decidim/errors_controller_extends"
     end
+    # --- FORCE LE CHARGEMENT DES DÉCORATEURS ---
+    # Chargement après initialisation complète de Rails
+    config.after_initialize do
+      decorators_path = Rails.root.join("app/decorators/**/*.rb")
+      Dir[decorators_path].each do |decorator|
+        Rails.logger.info "💡 Chargement manuel du décorateur : #{File.basename(decorator)}"
+        require decorator
+      end
+    end
   end
 end
diff --git a/lib/tasks/decidim-app.rake b/lib/tasks/decidim_app.rake
similarity index 100%
rename from lib/tasks/decidim-app.rake
rename to lib/tasks/decidim_app.rake