diff --git a/app/models/champ.rb b/app/models/champ.rb
index 91835499f..4c091e04f 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -5,10 +5,11 @@ class Champ < ApplicationRecord
   has_many :commentaires
   has_one_attached :piece_justificative_file
 
-  # We declare champ specific relationships (Champs::CarteChamp and Champs::SiretChamp)
+  # We declare champ specific relationships (Champs::CarteChamp, Champs::SiretChamp and Champs::RepetitionChamp)
   # here because otherwise we can't easily use includes in our queries.
   has_many :geo_areas, dependent: :destroy
   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?, to: :type_de_champ
 
diff --git a/app/models/champs/repetition_champ.rb b/app/models/champs/repetition_champ.rb
index 2173fe232..4d95e574d 100644
--- a/app/models/champs/repetition_champ.rb
+++ b/app/models/champs/repetition_champ.rb
@@ -1,6 +1,4 @@
 class Champs::RepetitionChamp < Champ
-  has_many :champs, -> { ordered }, foreign_key: :parent_id, inverse_of: :parent, dependent: :destroy
-
   accepts_nested_attributes_for :champs, allow_destroy: true
 
   def rows
@@ -21,11 +19,21 @@ class Champs::RepetitionChamp < Champ
     # The user cannot enter any information here so it doesn’t make much sense to search
   end
 
+  def rows_for_export
+    rows.each.with_index(1).map do |champs, index|
+      Champs::RepetitionChamp::Row.new(index: index, dossier_id: dossier_id.to_s, champs: champs)
+    end
+  end
+
   class Row < Hashie::Dash
     property :index
     property :dossier_id
     property :champs
 
+    def read_attribute_for_serialization(attribute)
+      self[attribute]
+    end
+
     def spreadsheet_columns
       [
         ['Dossier ID', :dossier_id],
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index 3aee61aa1..30bbe5312 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -137,12 +137,18 @@ class Dossier < ApplicationRecord
       champs: [
         :geo_areas,
         :etablissement,
-        piece_justificative_file_attachment: :blob
+        piece_justificative_file_attachment: :blob,
+        champs: [
+          piece_justificative_file_attachment: :blob
+        ]
       ],
       champs_private: [
         :geo_areas,
         :etablissement,
-        piece_justificative_file_attachment: :blob
+        piece_justificative_file_attachment: :blob,
+        champs: [
+          piece_justificative_file_attachment: :blob
+        ]
       ],
       justificatif_motivation_attachment: :blob,
       attestation: [],
diff --git a/app/serializers/champ_serializer.rb b/app/serializers/champ_serializer.rb
index 76d1ca76d..670979c81 100644
--- a/app/serializers/champ_serializer.rb
+++ b/app/serializers/champ_serializer.rb
@@ -8,6 +8,7 @@ class ChampSerializer < ActiveModel::Serializer
   has_many :geo_areas, if: :include_geo_areas?
   has_one :etablissement, if: :include_etablissement?
   has_one :entreprise, if: :include_etablissement?
+  has_many :rows, serializer: RowSerializer, if: :include_rows?
 
   def value
     case object
@@ -35,6 +36,10 @@ class ChampSerializer < ActiveModel::Serializer
     object.etablissement&.entreprise
   end
 
+  def rows
+    object.rows_for_export
+  end
+
   def include_etablissement?
     object.is_a?(Champs::SiretChamp)
   end
@@ -43,6 +48,10 @@ class ChampSerializer < ActiveModel::Serializer
     object.is_a?(Champs::CarteChamp)
   end
 
+  def include_rows?
+    object.is_a?(Champs::RepetitionChamp)
+  end
+
   private
 
   def legacy_type_de_champ
diff --git a/app/serializers/row_serializer.rb b/app/serializers/row_serializer.rb
new file mode 100644
index 000000000..b7aa2affd
--- /dev/null
+++ b/app/serializers/row_serializer.rb
@@ -0,0 +1,5 @@
+class RowSerializer < ActiveModel::Serializer
+  has_many :champs, serializer: ChampSerializer
+
+  attribute :index, key: :id
+end
diff --git a/app/services/procedure_export_v2_service.rb b/app/services/procedure_export_v2_service.rb
index be5bf8ff0..2a14615fa 100644
--- a/app/services/procedure_export_v2_service.rb
+++ b/app/services/procedure_export_v2_service.rb
@@ -60,11 +60,7 @@ class ProcedureExportV2Service
     champs_repetables.map do |libelle, champs|
       [
         libelle,
-        champs.flat_map do |champ|
-          champ.rows.each_with_index.map do |champs, index|
-            Champs::RepetitionChamp::Row.new(index: index + 1, dossier_id: champ.dossier_id.to_s, champs: champs)
-          end
-        end
+        champs.flat_map(&:rows_for_export)
       ]
     end
   end
diff --git a/spec/controllers/api/v1/dossiers_controller_spec.rb b/spec/controllers/api/v1/dossiers_controller_spec.rb
index 2ea28a353..955e2dac5 100644
--- a/spec/controllers/api/v1/dossiers_controller_spec.rb
+++ b/spec/controllers/api/v1/dossiers_controller_spec.rb
@@ -235,6 +235,22 @@ describe API::V1::DossiersController do
               it { expect(subject[:type_champ]).to eq('text') }
             end
           end
+
+          describe 'repetition' do
+            let(:procedure) { create(:procedure, administrateur: admin) }
+            let(:champ) { build(:champ_repetition) }
+            let(:dossier) { create(:dossier, :en_construction, champs: [champ], procedure: procedure) }
+
+            subject { super().first[:rows] }
+
+            it 'should have rows' do
+              expect(subject.size).to eq(2)
+              expect(subject[0][:id]).to eq(1)
+              expect(subject[0][:champs].size).to eq(2)
+              expect(subject[0][:champs].map { |c| c[:value] }).to eq(['text', '42'])
+              expect(subject[0][:champs].map { |c| c[:type_de_champ][:type_champ] }).to eq(['text', 'number'])
+            end
+          end
         end
 
         describe 'champs_private' do