diff --git a/definitions/ext-service/definition.yml b/definitions/ext-service/definition.yml
index fe39fe099..a7c27293d 100644
--- a/definitions/ext-service/definition.yml
+++ b/definitions/ext-service/definition.yml
@@ -40,6 +40,9 @@ synthesis:
     - attribute: telemetry.sdk.name
       value: opentelemetry
     tags:
+      k8s.cluster.name:
+      k8s.deployment.name:
+      k8s.namespace.name:
       telemetry.sdk.name:
         entityTagName: instrumentation.provider
       telemetry.sdk.language: