diff --git a/pkg/options/helpers.go b/pkg/options/helpers.go
index 781e0a26a..ae248e3e4 100644
--- a/pkg/options/helpers.go
+++ b/pkg/options/helpers.go
@@ -8,12 +8,6 @@ import (
 	"github.com/spf13/cast"
 )
 
-type (
-	filler interface {
-		fill()
-	}
-)
-
 func fill(opt interface{}) {
 	v := reflect.ValueOf(opt)
 	if v.Kind() != reflect.Ptr {