diff --git a/app/controllers/champs/siret_controller.rb b/app/controllers/champs/siret_controller.rb
index a099f25c4..169134aab 100644
--- a/app/controllers/champs/siret_controller.rb
+++ b/app/controllers/champs/siret_controller.rb
@@ -50,7 +50,7 @@ class Champs::SiretController < ApplicationController
   end
 
   def find_etablissement_with_siret
-    ApiEntrepriseService.create_etablissement(@champ.dossier, @siret, current_user.id)
+    ApiEntrepriseService.create_etablissement(@champ, @siret, current_user.id)
   end
 
   def clear_siret_and_etablissement
diff --git a/app/models/champ.rb b/app/models/champ.rb
index eae3ac82b..af5737e31 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -11,7 +11,7 @@ class Champ < ApplicationRecord
   belongs_to :etablissement, dependent: :destroy
   has_many :champs, -> { ordered }, foreign_key: :parent_id, inverse_of: :parent, dependent: :destroy
 
-  delegate :libelle, :type_champ, :order_place, :mandatory?, :description, :drop_down_list, :exclude_from_export?, :exclude_from_view?, :repetition?, :dossier_link?, to: :type_de_champ
+  delegate :libelle, :type_champ, :procedure, :order_place, :mandatory?, :description, :drop_down_list, :exclude_from_export?, :exclude_from_view?, :repetition?, :dossier_link?, to: :type_de_champ
 
   scope :updated_since?, -> (date) { where('champs.updated_at > ?', date) }
   scope :public_only, -> { where(private: false) }
diff --git a/app/services/api_entreprise_service.rb b/app/services/api_entreprise_service.rb
index 1ac1e273e..0df25fcce 100644
--- a/app/services/api_entreprise_service.rb
+++ b/app/services/api_entreprise_service.rb
@@ -7,11 +7,11 @@ class ApiEntrepriseService
   #
   # Raises a ApiEntreprise::API::RequestFailed exception on transient errors
   # (timeout, 5XX HTTP error code, etc.)
-  def self.create_etablissement(dossier, siret, user_id = nil)
-    etablissement_params = ApiEntreprise::EtablissementAdapter.new(siret, dossier.procedure.id).to_params
+  def self.create_etablissement(dossier_or_champ, siret, user_id = nil)
+    etablissement_params = ApiEntreprise::EtablissementAdapter.new(siret, dossier_or_champ.procedure.id).to_params
     return nil if etablissement_params.empty?
 
-    etablissement = dossier.build_etablissement(etablissement_params)
+    etablissement = dossier_or_champ.build_etablissement(etablissement_params)
     etablissement.save
 
     [
@@ -19,9 +19,9 @@ class ApiEntrepriseService
       ApiEntreprise::EffectifsJob, ApiEntreprise::EffectifsAnnuelsJob, ApiEntreprise::AttestationSocialeJob,
       ApiEntreprise::BilansBdfJob
     ].each do |job|
-      job.perform_later(etablissement.id, dossier.procedure.id)
+      job.perform_later(etablissement.id, dossier_or_champ.procedure.id)
     end
-    ApiEntreprise::AttestationFiscaleJob.perform_later(etablissement.id, dossier.procedure.id, user_id)
+    ApiEntreprise::AttestationFiscaleJob.perform_later(etablissement.id, dossier_or_champ.procedure.id, user_id)
 
     etablissement
   end
diff --git a/spec/controllers/champs/siret_controller_spec.rb b/spec/controllers/champs/siret_controller_spec.rb
index 4bd3e4eb3..545872192 100644
--- a/spec/controllers/champs/siret_controller_spec.rb
+++ b/spec/controllers/champs/siret_controller_spec.rb
@@ -4,7 +4,11 @@ describe Champs::SiretController, type: :controller do
 
   describe '#show' do
     let(:dossier) { create(:dossier, user: user, procedure: procedure) }
-    let(:champ) { create(:champ_siret, dossier: dossier, value: nil, etablissement: nil) }
+    let(:champ) do
+      d = dossier
+      type_de_champ = create(:type_de_champ_siret, procedure: procedure)
+      type_de_champ.champ.create(dossier: d, value: nil, etablissement: nil)
+    end
     let(:params) do
       {
         champ_id: champ.id,
@@ -109,6 +113,7 @@ describe Champs::SiretController, type: :controller do
           expect(champ.value).to eq(siret)
           expect(champ.etablissement.siret).to eq(siret)
           expect(champ.reload.etablissement.naf).to eq("6202A")
+          expect(dossier.reload.etablissement).to eq(nil)
         end
       end
     end