diff --git a/src/modeles/sessionFCPlus.js b/src/modeles/sessionFCPlus.js
index ea20fdd..31908c5 100644
--- a/src/modeles/sessionFCPlus.js
+++ b/src/modeles/sessionFCPlus.js
@@ -25,8 +25,9 @@ class SessionFCPlus {
     ])
       .then(([jwt, url]) => this.adaptateurChiffrement.verifieSignatureJWTDepuisJWKS(jwt, url))
       .then((infosDechiffrees) => ({
-        prenom: infosDechiffrees.given_name,
+        dateNaissance: infosDechiffrees.birthdate,
         nomUsage: infosDechiffrees.family_name,
+        prenom: infosDechiffrees.given_name,
         nonce: this.nonce,
       }))
       .catch((e) => Promise.reject(new ErreurEchecAuthentification(e.message)));
diff --git a/test/modeles/sessionFCPlus.spec.js b/test/modeles/sessionFCPlus.spec.js
index b61f6ad..109a63f 100644
--- a/test/modeles/sessionFCPlus.spec.js
+++ b/test/modeles/sessionFCPlus.spec.js
@@ -88,7 +88,7 @@ describe('Une session FranceConnect+', () => {
         try {
           expect(jwt).toBe('aaa');
           expect(url).toBe('http://example.com');
-          return Promise.resolve({ given_name: 'Anne', family_name: 'Durand' });
+          return Promise.resolve({ given_name: 'Anne', family_name: 'Durand', birthdate: '1972-11-25' });
         } catch (e) {
           return Promise.reject(e);
         }
@@ -99,6 +99,7 @@ describe('Une session FranceConnect+', () => {
         .then((json) => {
           expect(json).toHaveProperty('prenom', 'Anne');
           expect(json).toHaveProperty('nomUsage', 'Durand');
+          expect(json).toHaveProperty('dateNaissance', '1972-11-25');
         });
     });