diff --git a/discovery/targetgroup/targetgroup_test.go b/discovery/targetgroup/targetgroup_test.go
index 482c2693b..102b7f66e 100644
--- a/discovery/targetgroup/targetgroup_test.go
+++ b/discovery/targetgroup/targetgroup_test.go
@@ -17,9 +17,9 @@ import (
 	"errors"
 	"testing"
 
-	"gopkg.in/yaml.v2"
 	"github.com/prometheus/common/model"
-	
+	"gopkg.in/yaml.v2"
+
 	"github.com/prometheus/prometheus/util/testutil"
 )