diff --git a/apps/erbium/erbium.h b/apps/erbium/erbium.h
index 72b995db0..2a511e8e1 100644
--- a/apps/erbium/erbium.h
+++ b/apps/erbium/erbium.h
@@ -259,7 +259,7 @@ resource_t resource_##name = {NULL, flags, url, attributes, name##_handler, NULL
  * Macro to define a sub-resource
  * Make sure to define its parent resource beforehand and set 'parent' to that name.
  */
-#define SUB_RESOURCE(name, flags, url, attributes, parent)		\
+#define SUB_RESOURCE(name, flags, url, attributes, parent) \
 resource_t resource_##name = {NULL, flags, url, attributes, parent##_handler, NULL, NULL, NULL}
 
 /*
diff --git a/examples/er-rest-example/plugtest-server.c b/examples/er-rest-example/plugtest-server.c
index 0d4eb5c7b..1375681d2 100644
--- a/examples/er-rest-example/plugtest-server.c
+++ b/examples/er-rest-example/plugtest-server.c
@@ -482,9 +482,12 @@ obs_periodic_handler(resource_t *r)
   PRINTF("TICK %u for /%s\n", obs_counter, r->url);
 
   /* Build notification. */
+  /*TODO: REST.new_response() */
   coap_packet_t notification[1]; /* This way the packet can be treated as pointer as usual. */
   coap_init_message(notification, COAP_TYPE_NON, CONTENT_2_05, 0 );
-  coap_set_payload(notification, obs_content, snprintf(obs_content, sizeof(obs_content), "TICK %u", obs_counter));
+
+  REST.set_response_payload(notification, obs_content, snprintf(obs_content, sizeof(obs_content), "TICK %u", obs_counter));
+  REST.set_header_content_type(notification, REST.type.TEXT_PLAIN);
 
   /* Notify the registered observers with the given message type, observe option, and payload. */
   REST.notify_subscribers(r, obs_counter, notification);