diff --git a/src/main/java/eu/dnetlib/repo/manager/controllers/RepositoryController.java b/src/main/java/eu/dnetlib/repo/manager/controllers/RepositoryController.java
index 7c3f593..c8c555c 100644
--- a/src/main/java/eu/dnetlib/repo/manager/controllers/RepositoryController.java
+++ b/src/main/java/eu/dnetlib/repo/manager/controllers/RepositoryController.java
@@ -282,10 +282,10 @@ public class RepositoryController {
     /**
      * Unsubscribe from repo by email
      */
-    @RequestMapping(method = RequestMethod.DELETE, path = "{id}/admins/{email}")
+    @RequestMapping(method = RequestMethod.DELETE, path = "{id}/admins/{email:.+}")
     @PreAuthorize("hasAnyAuthority('ROLE_ADMIN', 'ROLE_PROVIDE_ADMIN') or @authorizationService.isMemberOf(#id)")
-    public Response unsubscribeByEmail(@PathVariable("id") String id, @PathVariable("email") String email) throws ResourceNotFoundException {
+    public ResponseEntity<Void> unsubscribeByEmail(@PathVariable("id") String id, @PathVariable("email") String email) throws ResourceNotFoundException {
         authorizationService.removeAdmin(id, email);
-        return Response.status(HttpStatus.OK.value()).entity(JsonUtils.createResponse("Role has been removed").toString()).type(javax.ws.rs.core.MediaType.APPLICATION_JSON).build();
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
     }
 }