diff --git a/src/Plugin/Block/AddActivity.php b/src/Plugin/Block/AddActivity.php
index f7f81d8..f309444 100644
--- a/src/Plugin/Block/AddActivity.php
+++ b/src/Plugin/Block/AddActivity.php
@@ -10,7 +10,7 @@ use Drupal\opencase_entities\Entity\OCActor;
  * Provides a Block with some help text about actor type fields
  *
  * @Block(
- *   activity_type = "add_activity",
+ *   id = "add_activity",
  *   admin_label = @Translation("Add Activity"),
  *   category = @Translation("Opencase"),
  * )