diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PermissionRootResource.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PermissionRootResource.java
index 6559e3dba2..cbb3fe0e46 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PermissionRootResource.java
+++ b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PermissionRootResource.java
@@ -71,7 +71,7 @@ public class PermissionRootResource {
   @TypeHint(TypeHint.NO_CONTENT.class)
   @Consumes(VndMediaType.PERMISSION)
   @Path("")
-  public Response create(@PathParam("namespace") String namespace, @PathParam("name") String name,@Valid PermissionDto permission) throws Exception {
+  public Response create(@PathParam("namespace") String namespace, @PathParam("name") String name,@Valid PermissionDto permission) throws AlreadyExistsException, NotFoundException {
     log.info("try to add new permission: {}", permission);
     Repository repository = load(namespace, name);
     RepositoryPermissions.permissionWrite(repository).check();