diff --git a/v2/cmd/coil-controller/sub/run.go b/v2/cmd/coil-controller/sub/run.go
index e2a8d73f..a2d04cc3 100644
--- a/v2/cmd/coil-controller/sub/run.go
+++ b/v2/cmd/coil-controller/sub/run.go
@@ -8,7 +8,6 @@ import (
 	"time"
 
 	v2 "github.com/cybozu-go/coil/v2"
-
 	coilv2 "github.com/cybozu-go/coil/v2/api/v2"
 	"github.com/cybozu-go/coil/v2/controllers"
 	"github.com/cybozu-go/coil/v2/pkg/constants"