diff --git a/app/jobs/etablissement_update_job.rb b/app/jobs/etablissement_update_job.rb
index fa85e144c..bcd81fa75 100644
--- a/app/jobs/etablissement_update_job.rb
+++ b/app/jobs/etablissement_update_job.rb
@@ -2,12 +2,9 @@ class EtablissementUpdateJob < ApplicationJob
   queue_as :default
 
   def perform(dossier, siret)
-    etablissement_attributes = ApiEntrepriseService.get_etablissement_params_for_siret(siret, dossier.procedure_id, dossier)
+    etablissement_attributes = ApiEntrepriseService.get_etablissement_params_for_siret(siret, dossier.procedure_id)
 
     if etablissement_attributes.present?
-      if dossier.entreprise.present?
-        dossier.entreprise.destroy
-      end
       if dossier.etablissement.present?
         dossier.etablissement.destroy
       end
diff --git a/app/services/api_entreprise_service.rb b/app/services/api_entreprise_service.rb
index ea77019a9..e3ea78622 100644
--- a/app/services/api_entreprise_service.rb
+++ b/app/services/api_entreprise_service.rb
@@ -1,5 +1,5 @@
 class ApiEntrepriseService
-  def self.get_etablissement_params_for_siret(siret, procedure_id, dossier = nil)
+  def self.get_etablissement_params_for_siret(siret, procedure_id)
     etablissement_params = ApiEntreprise::EtablissementAdapter.new(siret, procedure_id).to_params
     entreprise_params = ApiEntreprise::EntrepriseAdapter.new(siret, procedure_id).to_params
 
@@ -12,21 +12,7 @@ class ApiEntrepriseService
         .merge(association_params.transform_keys { |k| "association_#{k}" })
         .merge(exercices_params)
 
-      # This is to fill legacy models and relationships
-      if dossier.present?
-        handle_legacy_models!(params, entreprise_params, dossier, association_params)
-      end
-
       params
     end
   end
-
-  def self.handle_legacy_models!(params, entreprise_params, dossier, association_params)
-    params[:entreprise_attributes] = entreprise_params.merge(
-      {
-        dossier: dossier,
-        rna_information_attributes: association_params.presence
-      }.compact
-    )
-  end
 end