diff --git a/src/main/java/fr/titionfire/ffsaf/domain/service/CompetitionService.java b/src/main/java/fr/titionfire/ffsaf/domain/service/CompetitionService.java
index 7e4caa8..9b000b3 100644
--- a/src/main/java/fr/titionfire/ffsaf/domain/service/CompetitionService.java
+++ b/src/main/java/fr/titionfire/ffsaf/domain/service/CompetitionService.java
@@ -281,7 +281,7 @@ public class CompetitionService {
     public Uni<SimpleRegisterComb> addRegisterComb(SecurityCtx securityCtx, Long id, RegisterRequestData data,
                                                    String source) {
         if ("admin".equals(source))
-            if (data.getLicence() != -1) { // not a guest
+            if (data.getLicence() == null || data.getLicence() != -1) { // not a guest
                 return permService.hasEditPerm(securityCtx, id)
                         .chain(c -> findComb(data.getLicence(), data.getFname(), data.getLname())
                                 .call(combModel -> Mutiny.fetch(combModel.getLicences()))