diff --git a/src/Serializers/Entity.php b/src/Serializers/Entity.php
index <HASH>..<HASH> 100644
--- a/src/Serializers/Entity.php
+++ b/src/Serializers/Entity.php
@@ -31,7 +31,7 @@ class Entity {
    */
   protected function getSkeleton() : array {
     return [
-      'app' => [
+      'service' => [
         'name'    => $this->config->get( 'appName' ),
         'version' => $this->config->get( 'appVersion' ),
         'pid'     => getmypid(),
APM Server <I> now looks for a service key