diff --git a/src/main/webapp/src/pages/admin/member/LicenceCard.jsx b/src/main/webapp/src/pages/admin/member/LicenceCard.jsx
index fd3f20d..5c677ed 100644
--- a/src/main/webapp/src/pages/admin/member/LicenceCard.jsx
+++ b/src/main/webapp/src/pages/admin/member/LicenceCard.jsx
@@ -91,7 +91,6 @@ function sendLicence(event, dispatch) {
     event.preventDefault();
 
     const formData = new FormData(event.target);
-    formData.set('certificate', `${event.target.certificateBy?.value}¤${event.target.certificateDate?.value}`)
     formData.set('licence', event.target.licence?.value?.length > 0 ? event.target.licence?.value : null)
 
     toast.promise(
@@ -152,8 +151,13 @@ function ModalContent({licence, dispatch}) {
         if (licence.id !== -1) {
             setNew(false)
             setSaison(licence.saison)
-            setCertificateBy(licence.certificate.split('¤')[0])
-            setCertificateDate(licence.certificate.split('¤')[1])
+            if (licence.certificate === null) {
+                setCertificateBy("")
+                setCertificateDate("")
+            } else {
+                setCertificateBy(licence.certificate.split('¤')[0])
+                setCertificateDate(licence.certificate.split('¤')[1])
+            }
             setValidate(licence.validate)
         } else {
             setNew(true)