diff --git a/as-talange-web/src/main/java/com/astalange/web/controller/LicenceController.java b/as-talange-web/src/main/java/com/astalange/web/controller/LicenceController.java
index c0f5389..c0a5d96 100644
--- a/as-talange-web/src/main/java/com/astalange/web/controller/LicenceController.java
+++ b/as-talange-web/src/main/java/com/astalange/web/controller/LicenceController.java
@@ -48,6 +48,12 @@ public class LicenceController {
 
         Adherent adherent = adherentRepository.findById(id)
                 .orElseThrow(() -> new IllegalArgumentException("Invalid Adherent ID"));
+        
+        List<Licence> existingLicences = licenceRepository.findByAdherentId(id);
+        if (!existingLicences.isEmpty()) {
+            return "redirect:/adherents/" + id + "/edit";
+        }
+
         Categorie categorie = categorieRepository.findById(categorieId)
                 .orElseThrow(() -> new IllegalArgumentException("Invalid Categorie ID"));
 
diff --git a/as-talange-web/src/main/resources/templates/adherents/form.html b/as-talange-web/src/main/resources/templates/adherents/form.html
index 12d5c49..2ed1cb0 100644
--- a/as-talange-web/src/main/resources/templates/adherents/form.html
+++ b/as-talange-web/src/main/resources/templates/adherents/form.html
@@ -144,7 +144,7 @@
             <div th:if="${adherent.id != null}" class="max-w-3xl mx-auto bg-white rounded-xl shadow-sm border border-gray-100 p-8 mt-6">
                 <div class="flex justify-between items-center mb-6">
                     <h3 class="text-xl font-bold text-gray-900">Licences de l'adhérent</h3>
-                    <button onclick="openLicenceModal()" class="bg-green-600 text-white px-4 py-2 rounded-lg text-sm font-medium hover:bg-green-700 transition-colors">
+                    <button th:if="${#lists.isEmpty(licences)}" onclick="openLicenceModal()" class="bg-green-600 text-white px-4 py-2 rounded-lg text-sm font-medium hover:bg-green-700 transition-colors">
                         + Ajouter une Licence
                     </button>
                 </div>