diff --git a/app/models/attestation_template.rb b/app/models/attestation_template.rb
index 9c2b5ad49..3e84c0108 100644
--- a/app/models/attestation_template.rb
+++ b/app/models/attestation_template.rb
@@ -59,7 +59,8 @@ class AttestationTemplate < ApplicationRecord
   end
 
   def dossier_tags
-    [{ libelle: 'motivation', description: '', target: 'motivation' }]
+    [{ libelle: 'motivation', description: '', target: 'motivation' },
+     { libelle: 'numéro du dossier', description: '', target: 'id' }]
   end
 
   def individual_tags
diff --git a/spec/models/attestation_template_spec.rb b/spec/models/attestation_template_spec.rb
index 95270dbb9..6d7dffb7c 100644
--- a/spec/models/attestation_template_spec.rb
+++ b/spec/models/attestation_template_spec.rb
@@ -230,10 +230,10 @@ describe AttestationTemplate, type: :model do
     context 'when the dossier has a motivation' do
       let(:dossier) { create(:dossier, motivation: 'motivation') }
 
-      context 'and the title has the motivation tag' do
-        let(:template_title) { 'title --motivation--' }
+      context 'and the title has some dossier tags' do
+        let(:template_title) { 'title --motivation-- --numéro du dossier--' }
 
-        it { expect(view_args[:title]).to eq('title motivation') }
+        it { expect(view_args[:title]).to eq("title motivation #{dossier.id}") }
       end
     end