diff --git a/pkg/telemetry/vector.go b/pkg/telemetry/vector.go
index b797da298..2e5e0acda 100644
--- a/pkg/telemetry/vector.go
+++ b/pkg/telemetry/vector.go
@@ -175,7 +175,7 @@ if err == null {
 		Config: `source = '''
 namespace, err = get_env_var("NAMESPACE")
 if err == null {
-  .namespace = namespace
+  .tags.namespace = namespace
 }
 '''
 `,
diff --git a/pkg/telemetry/vector_test.go b/pkg/telemetry/vector_test.go
index 9bef3b06a..ef15f5b9e 100644
--- a/pkg/telemetry/vector_test.go
+++ b/pkg/telemetry/vector_test.go
@@ -231,7 +231,7 @@ inputs = ["cassandra_metrics_raw"]
 source = '''
 namespace, err = get_env_var("NAMESPACE")
 if err == null {
-  .namespace = namespace
+  .tags.namespace = namespace
 }
 '''