diff --git a/lib/promrelabel/relabel_test.go b/lib/promrelabel/relabel_test.go
index 67caaad61..57c10e2ad 100644
--- a/lib/promrelabel/relabel_test.go
+++ b/lib/promrelabel/relabel_test.go
@@ -718,7 +718,7 @@ func TestApplyRelabelConfigs(t *testing.T) {
   target_label: container_label_com_docker_swarm_task_name
   action: replace
 `, `{instance="subdomain.domain.com",container_label_com_docker_swarm_task_name="myservice.h408nlaxmv8oqkn1pjjtd71to.nv987lz99rb27lkjjnfiay0g4"}`, true,
-`{container_label_com_docker_swarm_task_name="myservice:subdomain",instance="subdomain.domain.com"}`)
+			`{container_label_com_docker_swarm_task_name="myservice:subdomain",instance="subdomain.domain.com"}`)
 	})
 }