1 files changed, 2 insertions, 3 deletions

diff --git a/src/NotificationProxy.c b/src/NotificationProxy.c
index 5ae59f2..cba12b9 100644
--- a/src/NotificationProxy.c
+++ b/src/NotificationProxy.c
@@ -236,8 +236,7 @@ np_error_t np_observe_notification( np_client_t client, const char *notification
  * @param client The client to send to
  * @param notification_spec Specification of the notifications that should be
  *  observed. This is expected to be an array of const char* that MUST have a
- *  terminating NULL entry. However this parameter can be NULL; in this case,
- *  the default set of notifications will be used.
+ *  terminating NULL entry.
  *
  * @return NP_E_SUCCESS on success, NP_E_INVALID_ARG when client is null,
  *   or an error returned by np_observe_notification.
@@ -253,7 +252,7 @@ np_error_t np_observe_notifications(np_client_t client, const char **notificatio
         }
 
         if (!notifications) {
-                notifications = np_default_notifications;
+                return NP_E_INVALID_ARG;
         }
 
         while (notifications[i]) {