diff --git a/app/graphql/mutations/base_mutation.rb b/app/graphql/mutations/base_mutation.rb
index 5113603d0..ec677ef18 100644
--- a/app/graphql/mutations/base_mutation.rb
+++ b/app/graphql/mutations/base_mutation.rb
@@ -5,6 +5,7 @@ module Mutations
         begin
           blob = ActiveStorage::Blob.find_signed(blob_id)
           blob.identify
+          nil
         rescue ActiveStorage::FileNotFoundError
           return { errors: ['Le fichier n’a pas été correctement téléversé sur le serveur de stockage'] }
         rescue ActiveSupport::MessageVerifier::InvalidSignature
diff --git a/config/env.example.optional b/config/env.example.optional
index fd59171fa..fc246b840 100644
--- a/config/env.example.optional
+++ b/config/env.example.optional
@@ -9,6 +9,10 @@ APPLICATION_BASE_URL="https://www.demarches-simplifiees.fr"
 # Utilisation de France Connect
 # FRANCE_CONNECT_ENABLED="disabled" # "enabled" par défaut
 
+# Personnalisation d'instance - URLs des CGU et des mentions légales
+# CGU_URL=""
+# MENTIONS_LEGALES_URL=""
+
 # Personnalisation d'instance - Adresses Email de l'application et téléphone
 # CONTACT_EMAIL=""
 # EQUIPE_EMAIL=""
diff --git a/config/initializers/urls.rb b/config/initializers/urls.rb
index 268174f5f..82ff12802 100644
--- a/config/initializers/urls.rb
+++ b/config/initializers/urls.rb
@@ -22,8 +22,8 @@ ADMINISTRATEUR_TUTORIAL_URL = [DOC_URL, "tutoriels", "tutoriel-administrateur"].
 INSTRUCTEUR_TUTORIAL_URL = [DOC_URL, "tutoriels", "tutoriel-accompagnateur"].join("/")
 CADRE_JURIDIQUE_URL = [DOC_URL, "tutoriels/video-le-cadre-juridique"].join("/")
 LISTE_DES_DEMARCHES_URL = [DOC_URL, "listes-des-demarches"].join("/")
-CGU_URL = [DOC_URL, "cgu"].join("/")
-MENTIONS_LEGALES_URL = [DOC_URL, "mentions-legales"].join("/")
+CGU_URL = ENV.fetch("CGU_URL", [DOC_URL, "cgu"].join("/"))
+MENTIONS_LEGALES_URL = ENV.fetch("MENTIONS_LEGALES_URL", [DOC_URL, "mentions-legales"].join("/"))
 API_DOC_URL = [DOC_URL, "pour-aller-plus-loin", "api"].join("/")
 WEBHOOK_DOC_URL = [DOC_URL, "pour-aller-plus-loin", "webhook"].join("/")
 ARCHIVAGE_DOC_URL = [DOC_URL, "pour-aller-plus-loin", "archivage-longue-duree-des-demarches"].join("/")
diff --git a/spec/controllers/api/v2/graphql_controller_spec.rb b/spec/controllers/api/v2/graphql_controller_spec.rb
index 1a9c36c48..d30329d22 100644
--- a/spec/controllers/api/v2/graphql_controller_spec.rb
+++ b/spec/controllers/api/v2/graphql_controller_spec.rb
@@ -37,7 +37,7 @@ describe API::V2::GraphqlController do
     }
   end
   let(:blob) do
-    blob = ActiveStorage::Blob.create_before_direct_upload!(blob_info)
+    blob = ActiveStorage::Blob.create_before_direct_upload!(**blob_info)
     blob.upload(file)
     blob
   end